PART A PHYSICS 1. From the following combinations of 1. physical constants (expressed through their usual symbols) the only combination, that would have the same value in different Öæ» A ÖæñçÌ·¤ çßææÙ ÖæñçÌ·¤ çSÍÚUæ´·¤æð´ ·ð¤ çÙÙçÜç¹Ì â´ØæðÁÙ âð (¥ÂÙð âæÏæÚUæ ÂýØæð» ×ð´ çÜØð »Øð ç¿ãæð´ mæÚUæ ÂýÎçàæüÌ), ·ð¤ßÜ ßã â´ØæðÁÙ, Áæð ç·¤ §·¤æ§Øæð´ ·ð¤ çßçÖóæ çÙ·¤æØæð´ ×ð´ °·¤ ãè ×æÙ ÚU¹Ìæ ãñ, ãñ Ñ systems of units, is : (1) (2) 2. ch e2 2peo Gm e 2 ch (1) 2 peo2 (me5 mass of electron) 2 peo2 e2 (2) 2peo Gm e 2 (me5§ÜðÅþUæòÙ (3) mo e o G c2 h e2 (3) mo eo G c2 h e2 (4) 2 p mo eo h G ce 2 (4) 2 p mo eo h G ce 2 A person climbs up a stalled escalator 2. in 60 s . If standing on the same but escalator running with constant velocity he takes 40 s. How much time is taken by the person to walk up the moving ·¤æ ÎýÃØ×æÙ) °·¤ ÃØçæ °·¤ SÍæçÂÌ °S·¤ÜðÅUÚU ·¤è ÎêÚUè 60 s ×𴠿ɸÌæ ãñÐ ØçÎ ©â ÂÚU ¹Ç¸ð ãæð·¤ÚU ÂÚUÌé çSÍÚU ßð» âð °S·¤ÜðÅUÚU ·ð¤ ¿ÜÙð ÂÚU ßã 40 s ÜðÌæ ãñÐ ÃØçæ »çÌàæèÜ °S·¤ÜðÅUÚU ÂÚU ¿Ü·¤ÚU §âè ÎêÚUè ·¤æð ÌØ ·¤ÚUÙð ×ð´ ç·¤ÌÙæ â×Ø Üð»æ? escalator ? (1) 37 s (1) 37 s (2) 27 s (2) 27 s (3) 24 s (3) 24 s (4) 45 s (4) 45 s English : 1 Set : 06 Hindi : 1 Set : 06 3. Three masses m, 2m and 3m are moving 3. in x-y plane with speed 3u, 2u, and u respectively as shown in figure. The three masses collide at the same point at P and stick together. The velocity of resulting ÌèÙ ÎýÃØ×æÙ x-y ÌÜ ×ð´ ¿æÜ ·ý¤×àæÑ 3u, 2u, °ß´ u âð »çÌàæèÜ ãñ, Áñâæ ç·¤ ç¿æ ×ð´ ÎàææüØæ »Øæ ãñÐ ÌèÙæð´ ÎýÃØ×æÙ °·¤ ãè çÕÎé ÂÚU â´æ^ ·¤ÚUÌð ãñ´ ¥æñÚU °·¤ âæÍ ç¿Â·¤ ÁæÌð ãñ´Ð ÂçÚUææ×è ÎýÃØ×æÙ ·¤æ ßð» ãæð»æ Ñ m, 2m °ß´ 3m ·ð¤ mass will be : (1) (2) (3) (4) ( u ∧ i1 12 ( u ∧ i2 12 ∧ 3j ∧ 3j ( u ∧ 2i 1 12 ( u ∧ 2i 2 12 ) ∧ u ∧ i 1 3j 12 ) (2) u ∧ i 2 12 ) (3) u ∧ 2i 1 12 ) (4) u ∧ 2i 2 12 ∧ 3j ∧ 3j 4. 4. ( (1) A 4 g bullet is fired horizontally with a speed of 300 m/s into 0.8 kg block of wood at rest on a table. If the coefficient of friction between the block and the table is ( ∧ 3j ) ) ∧ ) ∧ ) ( 3j ( 3j °·¤ ×ð$Á ÂÚU çßææ× ¥ßSÍæ ×ð´ çSÍÌ 0.8 kg Ü·¤Ç¸è ·ð¤ Üæ·¤ ·¤æð 300 m/s ·¤è ¿æÜ âð °·¤ 4 g ·¤è »æðÜè ÿæñçÌÁ Îæ»Ìè ãñÐ ØçÎ ×ð$Á °ß´ Üæ·¤ ·ð¤ Õè¿ æáüæ »éææ´·¤ 0.3 ãñ, ÌÕ Üæ·¤ ֻܻ ç·¤ÌÙè ÎêÚU çȤâÜð»æ? 0.3, how far will the block slide approximately ? (1) 0.19 m (1) 0.19 m (2) 0.379 m (2) 0.379 m (3) 0.569 m (3) 0.569 m (4) 0.758 m (4) 0.758 m English : 2 Set : 06 Hindi : 2 Set : 06 5. A spring of unstretched length l has a 5. mass m with one end fixed to a rigid support. Assuming spring to be made of a uniform wire, the kinetic energy possessed by it if its free end is pulled with uniform çÕÙæ ÌæçÙÌ ÜÕæ§ü l ·¤è °·¤ ·¤×æÙè âð °·¤ ÎýÃØ×æÙ m §â Âý·¤æÚU ãñ ç·¤ §â·¤æ °·¤ çâÚUæ °·¤ Îëɸ ¥æÏæÚU ÂÚU Õ¡Ïæ ãñÐ Øã ×æÙÌð ãéØð ç·¤ ·¤×æÙè °·¤ °·¤â×æÙ ÌæÚU âð ÕÙè ãñ, §â×ð´ »çÌÁ ª¤Áæü ãæð»è ØçÎ §â·¤æ SßÌæ çâÚUæ °·¤â×æÙ ßð» v âð ¹è´¿æ Áæ° Ñ velocity v is : (1) (2) 6. 1 m v2 2 mv 2 (1) (2) 1 m v2 2 mv 2 (3) 1 m v2 3 (3) 1 m v2 3 (4) 1 m v2 6 (4) 1 m v2 6 A particle is moving in a circular path of 6. radius a, with a constant velocity v as shown in the figure. The center of circle is marked by C. The angular momentum °·¤ ·¤æ çæØæ a ·ð¤ °·¤ ßëæèØ ÂÍ ÂÚU °·¤ çSÍÚU ßð» v âð »çÌàæèÜ ãñ Áñâæ ç·¤ ç¿æ ×ð´ ÎàææüØæ »Øæ ãñÐ ßëæ ·¤æ ·ð¤Îý C âð ç¿çãÌ ç·¤Øæ »Øæ ãñÐ ×êÜ çÕÎé O âð ·¤æðæèØ â´ßð» §â Âý·¤æÚU çܹæ Áæ â·¤Ìæ ãñ Ñ from the origin O can be written as : (1) (1) (2) (3) (4) va(11cos 2u) va(11cos u) va cos 2u va English : 3 (2) (3) (4) Set : 06 va(11cos 2u) va(11cos u) va cos 2u va Hindi : 3 Set : 06 7. 7. Two hypothetical planets of masses m1 and m 2 are at rest when they are infinite distance apart. Because of the gravitational force they move towards each other along the line joining their centres. What is their speed when their separation is d ? (Speed of m1 is v1 and that of m2 is v2) (1) v 15v 2 (2) (3) (4) v1 5 m 2 2G d(m 11m 2 ) v2 5 m 1 2G d(m 11m 2 ) v1 5 m 1 2G d(m 11m 2 ) v2 5 m 2 2G d(m 11m 2 ) v1 5 m 2 2G m1 v2 5 m 1 2G m2 English : 4 ÎýÃØ×æÙ m1 °ß´ m2 ·ð¤ Îæð ÂçÚU·¤çËÂÌ ©Â»ýã çßææ× ¥ßSÍæ ×ð´ ãñ´ ÁÕ ßð °·¤ ÎêâÚðU âð ¥æÌ ÎêÚUè ÂÚU ãñ´Ð »éL¤ßæ·¤áüæ ÕÜ ·ð¤ ·¤æÚUæ ©Ù·ð¤ ·ð¤Îýæð´ ·¤æð ç×ÜæÙð ßæÜè ÚðU¹æ ÂÚU °·¤ ÎêâÚðU ·¤è ¥æðÚU »çÌ ·¤ÚUÙæ ÂýæÚUÖ ·¤ÚUÌð ãñ´Ð ÁÕ ©æ·ð¤ Õè¿ ÎêÚUè d ãñ, ÌÕ ©Ù·¤è ¿æÜ Øæ ãñ? ( m1 ·¤è ¿æÜ v1 °ß´ m2 ·¤è ¿æÜ v2 ãñ ) (1) v 15v 2 (2) v1 5 m 2 2G d(m 11m 2 ) v2 5 m 1 2G d(m 11m 2 ) v1 5 m 1 2G d(m 11m 2 ) v2 5 m 2 2G d(m 11m 2 ) v1 5 m 2 2G m1 v2 5 m 1 2G m2 (3) (4) Set : 06 Hindi : 4 Set : 06 8. Steel ruptures when a shear of 8. 3.5310 8 N m 22 is applied. The force needed to punch a 1 cm diameter hole in a steel sheet 0.3 cm thick is nearly : 9. (1) 1.43104 N (2) SÅUèÜ È¤ÅU ÁæÌæ ãñ ÁÕ ©â ÂÚU 3.53108 Nm22 ·¤æ ¥ÂM¤Âæ Ü»æØæ ÁæÌæ ãñÐ 0.3 cm ×æðÅUè SÅUèÜ àæèÅU ×ð´ 1 cm ÃØæâ ·¤æ çÀUÎý ·¤ÚUÙð ×ð´ Ü»æØð ÁæÙð ßæÜæ ÕÜ Ü»Ö» ãñ Ñ (1) 1.43104 N 2.73104 N (2) 2.73104 N (3) 3.33104 N (3) 3.33104 N (4) 1.13104 N (4) 1.13104 N A cylindrical vessel of cross-section A 9. contains water to a height h. There is a hole in the bottom of radius a. The time in which it will be emptied is : (1) (2) (3) (4) 2A pa 2 h g (1) h g (2) 2A pa 2 2 2A pa h g 2 A 2 pa English : 5 ¥ÙéÂýSÍ ·¤æÅU A ßæÜð °·¤ ÕðÜÙæ·¤æÚU ÕÌüÙ ×ð´ ÂæÙè ª¡¤¿æ§ü h Ì·¤ ÖÚUæ ãñÐ §â·¤è ÌÜè ×ð´ çæØæ a ·¤æ °·¤ çÀUÎý ãñÐ ßã â×Ø, çÁâ×ð´ Øã ÕÌüÙ çÚUæ ãæð Áæ°»æ, ãñ Ñ 2 (3) h g (4) Set : 06 Hindi : 5 2A pa 2 h g 2A h g pa 2 2 2A pa h g 2 A 2 pa 2 h g Set : 06 10. Two soap bubbles coalesce to form a single 10. bubble. If V is the subsequent change in volume of contained air and S the change in total surface area, T is the surface tension and P atmospheric pressure, which Îæð âæÕéÙ ·ð¤ ÕéÜÕéÜð ç×Ü·¤ÚU °·¤ ÕéÜÕéÜæ ÕÙæÌð ãñ´Ð ØçÎ §Ù×ð´ çSÍÌ ßæØé ·ð¤ ¥æØÌÙ ×ð´ ÂÚUßÌèü ÂçÚUßÌüÙ V ãñ ¥æñÚU âÂêæü ÂëcÆ ÿæðæÈ¤Ü ×ð´ ÂçÚUßÌüÙ S ãñ, T ÂëcÆU ÌÙæß ãñ ¥æñÚU P ßæØé×´ÇUÜ ÎæÕ ãñ, ÌÕ çÙÙçÜç¹Ì ×ð´ âð ·¤æñÙ-âæ âÕÏ âãè ãñ? of the following relation is correct ? 11. (1) 4PV13ST50 (1) 4PV13ST50 (2) 3PV14ST50 (2) 3PV14ST50 (3) 2PV13ST50 (3) 2PV13ST50 (4) 3PV12ST50 (4) 3PV12ST50 Hot water cools from 608C to 508C in the 11. first 10 minutes and to 428C in the next 10 minutes. The temperature of the »×ü ÂæÙè 608C âð 508C ÂãÜð 10 ç×ÙÅU ×ð´ Æ´UÇUæ ãæðÌæ ãñ ¥æñÚU 428C Ì·¤ ÎêâÚðU 10 ç×ÙÅU ×ð´ Æ´UÇUæ ãæðÌæ ãñÐ ßæÌæßÚUæ ·¤æ ÌæÂ×æÙ ãñ Ñ surroundings is : 12. (1) 258C (1) 258C (2) 108C (2) 108C (3) 158C (3) 158C (4) 208C (4) 208C °ß´ 40% °ß´ 50% °ß´ 70% °ß´ A Carnot engine absorbs 1000 J of heat 12. energy from a reservoir at 1278C and rejects 600 J of heat energy during each cycle. The efficiency of engine and temperature of °·¤ ·¤æÙæðü §´ÁÙ °·¤ ·é´¤ÇU âð 1278C ÂÚU 1000 J ª¤c×èØ ª¤Áæü ¥ßàææðçáÌ ·¤ÚUÌæ ãñ ¥æñÚU ÂýØð·¤ ¿·ý¤ ×ð´ 600 J ª¤c×èØ ª¤Áæü ¥Sßè·¤æÚU ·¤ÚU ÎðÌæ ãñÐ §´ÁÙ ·¤è ÎÿæÌæ ¥æñÚU çâ´·¤ ·¤æ ÌæÂ×æÙ ãæð»æ Ñ sink will be : (1) 20% and 2438C (1) (2) 40% and 2338C (2) (3) 50% and 2208C (3) (4) 70% and 2108C (4) English : 6 Set : 06 20% Hindi : 6 2438C 2338C 2208C 2108C Set : 06 13. 1930 ms21. The gas is : ·¤×ÚðU ·ð¤ ÌæÂ×æÙ ÂÚU °·¤ çmÂÚU×ææé·¤ »ñâ ·¤è ß»ü-×æØ-×êÜ ¿æÜ 1930 ms21 ÂæØè ÁæÌè ãñÐ »ñâ ãñ Ñ (1) H2 (1) O2 (3) At room temperature a diatomic gas is 13. found to have an r.m.s. speed of (2) (3) (4) 14. Cl2 (2) F2 (4) Which of the following expressions 14. corresponds to simple harmonic motion along a straight line, where x is the H2 Cl2 O2 F2 çÙÙçÜç¹Ì ÃØ´Á·¤æð´ ×ð´ âð ·¤æñÙ âæ °·¤ âÚUÜ ÚðU¹æ ÂÚU âÚUÜ ¥æßÌü »çÌ ·ð¤ â´»Ì ãñ, Áãæ¡ x çßSÍæÂÙ ãñ ¥æñÚU a, b, c ÏÙæ×·¤ çSÍÚUæ´·¤ ãñ ? displacement and a, b, c are positive constants ? 15. (1) a1bx2cx 2 (1) a1bx2cx 2 (2) bx2 (2) bx2 (3) a2bx1cx 2 (3) a2bx1cx 2 (4) 2bx (4) 2bx A source of sound A emitting waves of 15. frequency 1800 Hz is falling towards ground with a terminal speed v. The observer B on the ground directly beneath the source receives waves of frequency 2150 Hz. The source A receives waves, ¥æßëçæ 1800 Hz ·¤è Ì´ÚU»ð´ ©âçÁüÌ ·¤ÚU ÚUãæ ßçÙ dæðÌ A °·¤ âè×æÌ ßð» v âð ÏÚUÌè ·¤è ¥æðÚU ç»ÚU ÚUãæ ãñÐ dæðÌ ·ð¤ ÆUè·¤ Ùè¿ð ÏÚUÌè ÂÚU °·¤ Âýðÿæ·¤ B ¥æßëçæ 2150 Hz ·¤è ÌÚ´U»ð´ Âýææ ·¤ÚUÌæ ãñÐ dæðÌ A, ÏÚUÌè âð ÂÚUæßçÌüÌ Ü»Ö» §â ¥æßëçæ ·¤è ÌÚ´U»ð´ Âýææ ·¤ÚðU»æ Ñ ( ßçÙ ·¤è ¿æÜ 5343 m/s) reflected from ground, of frequency nearly : (Speed of sound 5343 m/s) (1) 2150 Hz (1) 2150 Hz (2) 2500 Hz (2) 2500 Hz (3) 1800 Hz (3) 1800 Hz (4) 2400 Hz (4) 2400 Hz English : 7 Set : 06 Hindi : 7 Set : 06 16. A spherically symmetric charge 16. distribution is characterised by a charge density having the following variation : r r(r)5ro 1 2 for r < R R °·¤ »æðÜèØ â×ç×Ìè ¥æßðàæ çßÌÚUæ ¥æßðàæ æÙß ·¤æ çÙÙçÜç¹Ì çß¿ÚUæ ÚU¹Ìæ ãñ Ñ r r(r)5ro 1 2 r < R ·ð¤ R çÜ° Áãæ¡ r ¥æßðàæ çßÌÚUæ ·ð¤ ·ð¤Îý âð ÎêÚUè ãñ´ ¥æñÚU ro °·¤ çSÍÚUæ´·¤ ãñÐ °·¤ ¥ÌÑ çÕÎé (r < R) ÂÚU çßléÌ ÿæðæ ãñ Ñ r(r)50 r(r)50 for r / R Where r is the distance from the centre of the charge distribution and ro is a constant. The electric field at an internal point (r < R) is : r / R ·ð¤ (1) ro r r2 2 4eo 3 4R (1) ro r r2 2 4e o 3 4R (2) ro r r2 2 4R eo 3 (2) ro r r2 2 4R eo 3 (3) ro r r2 2 3e o 3 4R (3) ro r r2 2 3eo 3 4R (4) ro r r2 2 12 eo 3 4R (4) ro r r2 2 12 eo 3 4R English : 8 Set : 06 çÜ° Hindi : 8 Set : 06 17. The space between the plates of a parallel 17. plate capacitor is filled with a dielectric whose dielectric constant varies with distance as per the relation : K(x)5Ko1lx (l5 a constant) The capacitance C, of this capacitor, would be related to its vacuum capacitance Co as per the relation : °·¤ â×æÌÚU Âç^·¤æ â´ÏæçÚUæ ·¤è Âç^·¤æ¥æð´ ·ð¤ Õè¿ ·¤æ SÍæÙ °·¤ ÂÚæßñléÌ âð ÖÚUæ ÁæÌæ ãñ çÁâ·¤æ ÂÚUæßñléÌ çSÍÚUæ´·¤ ÎêÚUè ·ð¤ âæÍ çÙÙ âÕÏ ¥ÙéâæÚU ÂçÚUßçÌüÌ ãæðÌæ ãñ Ñ K(x)5Ko1lx (l5°·¤ çSÍÚUæ´·¤) â´ÏæçÚUæ ·¤è ÏæçÚUÌæ C, §â·¤è çÙßæüÌ ÏæçÚUÌæ, Co ·ð¤ âæÍ çÙÙ âÕÏ ¥ÙéâæÚU âÕçÏÌ ãæð»è Ñ (1) C5 ld Co l n (1 1 K o ld) (1) C5 ld Co l n (1 1 K o ld) (2) C5 l Co d. l n (1 1 K o ld) (2) C5 l Co d. l n (1 1 K o ld) (3) C5 ld Co l n (1 1 ld/K o ) (3) C5 ld Co l n (1 1 ld/K o ) (4) C5 l Co d. l n (1 1 K o /ld) (4) C5 l Co d. l n (1 1 K o /ld) English : 9 Set : 06 Hindi : 9 Set : 06 18. 3 V, 9 V and 9 V and a capacitor 5.0 mF. ÎàææüØð »Øð ÂçÚUÂÍ ×ð´ 8.0 V °ß´ 16.0 V ·¤è Îæð ÕñÅUçÚUØæ¡ ¥æñÚU 3 V, 9 V °ß´ 9 V ·ð¤ ÌèÙ ÂýçÌÚUæðÏ ÌÍæ 5.0 mF ·¤æ °·¤ â´ÏæçÚUæ ãñÐ How much is the current I in the circuit in SÍæØè ¥ßSÍæ ×ð´ ÂçÚUÂÍ ×ð´ ÏæÚUæ I ·¤æ ×æÙ Øæ ãñ? The circuit shown here has two batteries 18. of 8.0 V and 16.0 V and three resistors steady state ? 19. (1) 1.6 A (1) 1.6 A (2) 0.67 A (2) 0.67 A (3) 2.5 A (3) 2.5 A (4) 0.25 A (4) 0.25 A A positive charge q of mass m is moving 19. along the 1x axis. We wish to apply a uniform magnetic field B for time Dt so that the charge reverses its direction crossing the y axis at a distance d. Then : ÎýÃØ×æÙ m ·¤æ °·¤ ÏÙæ×·¤ ¥æßðàæ q, 1x ¥ÿæ ÂÚU »çÌàæèÜ ãñÐ ã× °·¤ °·¤â×æÙ ¿éÕ·¤èØ ÿæðæ B â×Ø Dt ·ð¤ çÜ° Ü»æÙæ ¿æãÌð ãñ´ çÁââð ç·¤ ¥æßðàæ ·¤è çÎàææ d ÎêÚUè ÂÚU y - ¥ÿæ ·¤æð ·¤æÅUÌð ãé° ÂýçÌÜæðç×Ì ãæð Áæ°, ÌÕ Ñ (1) 5 pd mv DQGDW5 qd v (1) 5 pd mv Ä D W5 qd v (2) 5 mv pd DQG D W5 2 qd 2v (2) 5 mv pd Ä D W5 2 qd 2v (3) 5 pd 2 mv DQG D W5 qd 2v (3) 5 pd 2 mv Ä D W5 qd 2v (4) 5 pd 2 mv DQG D W5 qd v (4) 5 pd 2 mv Ä D W5 qd v English : 10 Set : 06 Hindi : 10 Set : 06 20. Consider two thin identical conducting 20. wires covered with very thin insulating material. One of the wires is bent into a loop and produces magnetic field B1, at its centre when a current I passes through it. The second wire is bent into a coil with three identical loops adjacent to each other and produces magnetic field B 2 at the centre of the loops when current I/3 passes 21. Îæð ÂÌÜð âßü â×M¤Âè ¿æÜ·¤èØ ÌæÚU ÕãéÌ ÂÌÜð ÚUæðÏè ÂÎæÍü âð ɸ·ð¤ ãé° ãñ´Ð °·¤ ÌæÚU ·¤æð ×æðǸ·¤ÚU °·¤ Üê ÕÙæØæ ÁæÌæ ãñ Áæð ç·¤ ¥ÂÙð ·ð¤Îý ÂÚU ¿éÕ·¤èØ ÿæðæ B1 ©Âóæ ·¤ÚUÌæ ãñ ÁÕ §â×ð´ ÏæÚUæ I ÂýßæçãÌ ãæðÌè ãñÐ ÎêâÚðU ÌæÚU ·¤æð ÌèÙ âßüâ×M¤Âè ÜêÂæð´ ×ð´ ×æðǸ·¤ÚU ¥æñÚU °·¤ âæÍ ÚU¹·¤ÚU ·é¤ÇUÜè ÕÙæÌð ãñ´ Áæð ç·¤ ÜêÂæ𴠷𤠷ð¤Îý ÂÚU ¿éÕ·¤èØ ÿæðæ B2 ©Âóæ ·¤ÚUÌæ ãñ ÁÕ §â×ð´ ÏæÚUæ I/3 ÂýßæçãÌ ãæðÌè ãñÐ ¥ÙéÂæÌ B1 : B2 ãñ Ñ (1) 1:1 through it. The ratio B1 : B2 is : (1) 1 : 1 (2) 1:3 (3) 1:9 (2) 1:3 (4) 9:1 (3) 1:9 (4) 9:1 21. A sinusoidal voltage V(t)5100 sin (500t) °·¤ ØæÃæ·ý¤èØ ßæðËÅUÌæ V(t)5100 sin (500t) °·¤ çßàæéh ÂýðÚU·¤ß L50.02 H ÂÚU Ü»æ§ü ÁæÌè ãñÐ ·é¤ÇUÜè âð ÂýßæçãÌ ÏæÚUæ ãñ Ñ is applied across a pure inductance of L50.02 H. The current through the coil (1) 10 cos (500t) is : (2) 210 cos (500t) (1) 10 cos (500t) (3) 10 sin (500t) (2) 210 cos (500t) (4) 210 sin (500t) (3) 10 sin (500t) (4) 210 sin (500t) English : 11 Set : 06 Hindi : 11 Set : 06 22. A lamp emits monochromatic green light 22. uniformly in all directions. The lamp is 3% efficient in converting electrical power to electromagnetic waves and consumes 100 W of power. The amplitude of the electric field associated with the °·¤ Üð âÖè çÎàææ¥æð´ ×ð´ °·¤â×æÙ M¤Â âð °·¤ßæèü ãÚUæ Âý·¤æàæ ©âçÁüÌ ·¤ÚU ÚUãæ ãñÐ Üð ·¤è çßléÌ àæçæ ·¤æð çßléÌ ¿éÕ·¤èØ ÌÚ´U»æð´ ×ð´ ÂçÚUßÌüÙ ·¤ÚUÙð ·¤è ÎÿæÌæ 3% ãñ ¥æñÚU 100 W àæçæ ·¤è ¹ÂÌ ·¤ÚUÌæ ãñÐ Üð âð 5 m ÎêÚUè ÂÚU çßléÌ ¿éÕ·¤èØ çßç·¤ÚUæ âð âÕçhÌ çßléÌ ÿæðæ ·¤æ ¥æØæ× Ü»Ö» ãæð»æ Ñ electromagnetic radiation at a distance of (1) 1.34 V/m 5 m from the lamp will be nearly : (2) 2.68 V/m (1) 1.34 V/m (3) 4.02 V/m (2) 2.68 V/m (4) 5.36 V/m (3) 4.02 V/m (4) 5.36 V/m English : 12 Set : 06 Hindi : 12 Set : 06 23. The refractive index of the material of a 23. concave lens is m. It is immersed in a medium of refractive index m1. A parallel beam of light is incident on the lens. The path of the emergent rays when m1 > m is : °·¤ ¥ßÌÜ Üðâ ·ð¤ ÂÎæÍü ·¤æ ¥ÂßÌüÙæ´·¤ m ãñÐ §âð ¥ÂßÌüÙæ´·¤ m1 ·ð¤ ×æØ× ×ð´ ÇéUÕæðØæ ÁæÌæ ãñÐ Âý·¤æàæ ·¤è °·¤ â×æÌÚU Âé´Á Üðâ ÂÚU ¥æÂçÌÌ ãñÐ ÁÕ m1 > m ãñ´, ÌÕ çÙ»üÌ ç·¤ÚUææð´ ·¤æ ÂÍ ãñ Ñ (1) (1) (2) (2) (3) (3) (4) (4) English : 13 Set : 06 Hindi : 13 Set : 06 24. Interference pattern is observed at P due 24. to superimposition of two rays coming out from a source S as shown in the figure. The value of l for which maxima is obtained at P is : °·¤ dæðÌ S âð çÙ·¤Ü ÚUãè Îæð ç·¤ÚUææ𴠷𤠥ØæÚUæðÂæ âð P ÂÚU °·¤ ÃØçÌ·¤ÚUæ ç¿æ ÂæØæ ÁæÌæ ãñ, Áñâæ ç·¤ ç¿æ ×ð´ ÎàææüØæ »Øæ ãñÐ l ·¤æ ßã ×æÙ, çÁâ·ð¤ çÜ° P ÂÚU Âýææ ç¿æ ×ð´ ×ãæ× ÌèßýÌæ ãñ, ãñ Ñ (R °·¤ ÂêæüÌØæ ÂÚUæßÌèü ÂëcÆU ãñ ) (R is perfect reflecting surface) : (1) (2) (3) (4) l5 l5 l5 l5 2 nl 321 (2n21)l 2 ( 3 2 1) (2n21)l 3 4 ( 22 3 ) (2n21)l 3 21 25. 25. In an experiment of single slit diffraction pattern, first minimum for red light coincides with first maximum of some 2 nl 321 (1) l5 (2) l5 (2n21)l 2 ( 3 2 1) (3) l5 (2n21)l 3 4 ( 22 3 ) (4) l5 (2n21)l 3 21 °·¤Ü çSÜÅU çßßÌüÙ ç¿æ ·ð¤ ÂýØæð» ×ð´, ÜæÜ Âý·¤æàæ ·¤æ ÂýÍ× ØêÙÌ× °·¤ ÎêâÚUè ÌÚ´U»ÎñØü ·ð¤ ÂýÍ× ×ãæ× â´ÂæÌè ãñÐ ØçÎ ÜæÜ Âý·¤æàæ ·¤è ÌÚ´U»ÎñØü 6600 Å ãñ, ÌÕ ÂýÍ× ×ãæ× ·ð¤ â´»Ì ÌÚ´U»ÎñØü ãæð»è Ñ other wavelength. If wavelength of red light is 6600 Å , then wavelength of first maximum will be : (1) 3300 Å (1) 3300 Å (2) 4400 Å (2) 4400 Å (3) 5500 Å (3) 5500 Å (4) 6600 Å (4) 6600 Å English : 14 Set : 06 Hindi : 14 Set : 06 26. A beam of light has two wavelengths 26. 4972 Å and 6216 Å with a total intensity of 3.631023 Wm22 equally distributed among the two wavelengths. The beam falls normally on an area of 1 cm2 of a clean metallic surface of work function 2.3 eV. Assume that there is no loss of light by reflection and that each capable photon ejects one electron. The number of photo electrons liberated in 2s Îæð ÌÚ´U»ÎñØæðZ 4972Å °ß´ 6216 Å ßæÜð Âý·¤æàæ ·¤è °·¤ Âé´Á ·¤è ·é¤Ü ÌèßýÌæ 3.631023 Wm22 ãñ Áæð ç·¤ ÎæðÙæð´ ÌÚ´U»ÎñØæðZ ×ð´ °·¤ â×æÙ çßÌçÚUÌ ãñÐ 2.3 eV ·¤æØü È ¤ÜÙ ßæÜð °·¤ âæȤ ÏæÌé ·ð ¤ Âë c ÆU ·ð ¤ 1 cm2 ÿæðæÈ¤Ü ÂÚU Øã Âé´Á ¥çÖÜÕßÌ÷ ¥æÂçÌÌ ãñ´Ð Øã ×æÙ Üð´ ç·¤ ÂÚUæßÌüÙ mæÚUæ ç·¤âè Öè Âý·¤æàæ ·¤æ Oæâ Ùãè´ ãæðÌæ ãñ ¥æñÚU ÂýØð·¤ ÿæç×Ì È¤æðÅUæÙ °·¤ §ÜðÅþUæÙò ©âçÁüÌ ·¤ÚUÌæ ãñÐ 2s ×ð´ ©âçÁüÌ È¤æðÅUæð §ÜðÅþUæòÙæð´ ·¤è â´Øæ ãñ ֻܻ Ñ is approximately : 27. (1) 6310 11 (1) 6310 11 (2) 9310 11 (2) 9310 11 (3) 11310 11 (3) 11310 11 (4) 15310 11 (4) 15310 11 A piece of bone of an animal from a ruin 27. is found to have 14 C activity of 12 disintegrations per minute per gm of its carbon content. The 14C activity of a living animal is 16 disintegrations per minute per gm. How long ago nearly did the animal die ? (Given half life of °·¤ ¹ÇUãÚU âð Âýææ °·¤ Âàæé ·¤è ãaè ·ð¤ ÅéU·¤Ç¸ð ·¤è 14C âç·ý¤ØÌæ §â·ð¤ ·¤æÕüÙ ¥´àæ ·¤è ÂýçÌ »ýæ× ÂýçÌ ç×ÙÅU 12 çßæÅUÙ ãñÐ °·¤ çæÎæ Âàæé ·¤è 14C âç·ý¤ØÌæ 16 çßæÅUÙ ÂýçÌ ç×ÙÅU ÂýçÌ »ýæ× ãñ Рֻܻ ç·¤ÌÙð ßáü ÂãÜð Âàæé ·¤è ×ëØé ãé§ü? (çÎØæ ãñ 14C ·¤è ¥hü ¥æØé t1/255760 ßáü) 14C is t1/255760 years) (1) 1672 years (1) 1672 (2) 2391 years (2) 2391 (3) 3291 years (3) 3291 (4) 4453 years (4) 4453 English : 15 Set : 06 Hindi : 15 ßáü ßáü ßáü ßáü Set : 06 28. For LEDs to emit light in visible region of 28. electromagnetic light, it should have energy band gap in the range of : 29. (1) 0.1 eV to 0.4 eV (2) 0.5 eV to 0.8 eV (3) 0.9 eV to 1.6 eV (4) 1.7 eV to 3.0 eV For sky wave propagation, the radio 29. waves must have a frequency range in çßléÌ ¿éÕ·¤èØ Âý·¤æàæ ·ð¤ ÎëàØ ÿæðæ ×ð´ Âý·¤æàæ ©âçÁüÌ ·¤ÚðU, §â·ð¤ çÜØð §Ù·¤è ÕñÇ ¥ÌÚUæÜ §â ÚðUÁ ×ð´ ãæðÙè ¿æçãØð Ñ (1) 0.1 eV âð 0.4 eV (2) 0.5 eV âð 0.8 eV (3) 0.9 eV âð 1.6 eV (4) 1.7 eV âð 3.0 eV ¥æ·¤æàæ ÌÚ´U» â´¿ÚUæ ·ð¤ çÜ°, ÚðUçÇUØæð ÌÚ´U»ð´ §â ¥æßëçæ ÚðUÁ ·ð¤ Õè¿ ãæðÙè ¿æçã° Ñ LEDs between : 30. (1) 1 MHz to 2 MHz (1) (2) 5 MHz to 25 MHz (2) (3) 35 MHz to 40 MHz (3) (4) 45 MHz to 50 MHz (4) In the experiment of calibration of 30. voltmeter, a standard cell of e.m.f. 1.1 volt is balanced against 440 cm of potentiometer wire. The potential difference across the ends of resistance is found to balance against 220 cm of the âð 2 MHz 5 MHz âð 25 MHz 35 MHz âð 40 MHz 45 MHz âð 50 MHz 1 MHz °·¤ ßæðËÅU×æÂè ·ð¤ ¥´àæàææðÏÙ ·ð¤ ÂýØæð» ×ð´, 1.1 ßæðËÅU çßléÌßæã·¤ ÕÜ ·ð¤ °·¤ ×æÙ·¤ âñÜ ·ð¤ â´ÌéçÜÌ 440 cm ·¤æ çßÖß×æÂè ÌæÚU ÂæØæ ÁæÌæ ãñÐ °·¤ ÂýçÌÚUæðÏ ·ð¤ çâÚUæð´ ÂÚU çßÖßæÌÚU ÌæÚU ·ð¤ 220 cm ·ð¤ â´ÌéçÜÌ ÂæØæ ÁæÌæ ãñÐ ßæðËÅU×æÂè ·¤æ â´»Ì ÂÆUÙ 0.5 ßæðËÅU ãñÐ ßæðËÅU×æÂè ·ð¤ ÂÆUÙ ×ð´ æéçÅU ãæð»è Ñ wire. The corresponding reading of voltmeter is 0.5 volt. The error in the reading of voltmeter will be : (1) 20.15 volt (1) (2) 0.15 volt (2) (3) 0.5 volt (3) (4) 20.05 volt (4) English : 16 Set : 06 ßæðËÅU 0.15 ßæðËÅU 0.5 ßæðËÅU 20.05 ßæðËÅU 20.15 Hindi : 16 Set : 06 PART B CHEMISTRY 31. If m and e are the mass and charge of the 31. revolving electron in the orbit of radius r for hydrogen atom, the total energy of the Öæ» B ÚUâæØÙ çßææÙ ØçÎ ãæ§ÇþæðÁÙ ÂÚU×ææé ·ð¤ çæØæ r ·¤è ¥æÚUçÕÅU ×ð´ æê×Ùð ßæÜð §ÜñÅþUæòÙ ·¤æ ÎýÃØ×æÙ m ¥æñÚU ¥æßðàæ e ãæð´ Ìæð, æê×Ùð ßæÜð §ÜñÅþUæòÙ ·¤è â·¤Ü ª¤Áæü ãæð»è Ñ revolving electron will be : 32. (1) 1 e2 2 r (1) 1 e2 2 r (2) 2 e2 r (2) 2 (3) me 2 r (3) me 2 r (4) 2 (4) 2 1 e2 2 r The de-Broglie wavelength of a particle of 32. mass 6.63 g moving with a velocity of 100 ms21 is : 33. e2 r 1 e2 2 r ÎýÃØ×æÙ 6.63 g ·ð¤ ·¤æ ·¤æ ¥æßð» 100 ms21 âð »çÌ×æÙ ãæðÙð ÂÚU Îè-ÕýæÜè ÌÚ´U»ÎñØü ãæð»è Ñ (1) 10233 m (1) 10233 m (2) 10235 m (2) 10235 m (3) 10231 m (3) 10231 m (4) 10225 m (4) 10225 m What happens when an inert gas is added 33. to an equilibrium keeping volume unchanged ? (1) More product will form (2) Less product will form (3) More reactant will form (4) Equilibrium will remain unchanged English : 17 Set : 06 âæØ ÚU¹Ùð ßæÜð ¥æØÌÙ ·¤æð ¥ÂçÚUßçÌüÌ ÚU¹Ùð ßæÜè çSÍçÌ ×ð´ °·¤ ¥ç·ý¤Ø »ñâ ÇæÜÙð ÂÚU Øæ ãæð»æ? (1) ¥çÏ·¤ ç·ý¤Øæ È¤Ü Âýææ ãæð»æÐ (2) ·¤× ç·ý¤Øæ È¤Ü Âýææ ãæð»æÐ (3) ¥çÏ·¤ ¥çÖç·ý¤Øæ ãæð»èÐ (4) âæØ ¥ÂçÚUßçÌüÌ ÚUãð»æÐ Hindi : 17 Set : 06 34. The amount of BaSO4 formed upon mixing 34. 100 mL of 20.8% BaCl 2 solution with 50 mL of 9.8% H2SO4 solution will be : (Ba5137, Cl535.5, S532, H51 and O516) 35. ÁÕ ¥æñÚU O516 ×æÙæ ÁæØð Ìæð 20.8% BaCl2 çßÜØÙ ·ð¤ 100 mL ·¤æð 9.8%, H 2 SO 4 ·ð ¤ çßÜØÙ ·ð ¤ 50 mL ×ð´ ç×ÜæÙð ÂÚU ç·¤ÌÙæ BaSO4 ÕÙð»æ? Ba5137, Cl535.5, S532, H51 (1) 23.3 g (1) 23.3 g (2) 11.65 g (2) 11.65 g (3) 30.6 g (3) 30.6 g (4) 33.2 g (4) 33.2 g The rate coefficient (k) for a particular 35. reactions is and 1.331024 1.331023 M21 M21 s21 s21 at 1008C, at 1508C. What is the energy of activation (EA) (in kJ) for this reaction ? (R5molar gas constant58.314 JK21 mol21) ÂÚU °·¤ çßàæðá ¥çÖç·ý¤Øæ ·¤æ ÎÚU çÙØÌæ´·¤ (k) 1.331024 M21 s21 ãñ ¥æñÚU 1508C ÂÚU §â·¤æ ×æÙ 1.331023 M21 s21 ãñÐ §â ¥çÖç·ý¤Øæ ·ð¤ çÜØð °ðÅUèßðàæÙ ª¤Áæü (EA) kJ ×ð´ ç·¤ÌÙè ãæð»è? (R5×æðÜÚU »ñâ çÙØÌæ´·¤ 58.314 JK21 ×æðÜ 21) 1008C (1) 16 (1) 16 (2) 60 (2) 60 (3) 99 (3) 99 (4) 132 (4) 132 English : 18 Set : 06 Hindi : 18 Set : 06 36. How many electrons would be required to 36. deposit 6.35 g of copper at the cathode during the electrolysis of an aqueous solution of copper sulphate ? (Atomic mass of copper 5 63.5 u, N A 5Avogadros constant) : 37. ·¤æÂÚU âË$Èð¤ÅUU ·ð¤ ÁÜèØ çßÜØÙ ·ð¤ §ÜñÅþUæòÜðçââ ×ð´ ·ñ¤ÍæðÇ ÂÚU 6.35 »ýæ× ·¤æÂÚU ·ð¤ Á×æ¥æð´ ·ð¤ çÜØð ç·¤ÌÙð §ÜñÅþUæòÙæð´ ·¤è ¥æßàØ·¤Ìæ ãæð»è? (·¤æÂÚU ·¤æ ÂÚU×ææé ÎýÃØ×æÙ 5 63.5 ×ææ·¤, NA5 °ðßæð»æÎýæð çÙØÌæ´·¤) (1) NA 20 (1) NA 20 (2) NA 10 (2) NA 10 (3) NA 5 (3) NA 5 (4) NA 2 (4) NA 2 The entropy (S o ) of the following 37. substances are : CH4 (g) 186.2 J K21 mol21 O2 (g) 205.0 J K21 mol21 CO 2 (g) 213.6 J K21 mol21 H2O (l) 69.9 J K21 mol21 The entropy change (DSo) for the reaction CH4(g)12O2(g) ® CO2(g)12H2O(l) is : (1) 2312.5 J K21 mol21 (2) (3) (4) 2242.8 J K21 mol21 çÙÙ ÂÎæÍæðZ ·ð¤ °ðÅþUæÂè ×æÙ ãñ (So) ãñ´ Ñ CH4 (g) 186.2 J K21 ×æðÜ21 O 2 (g) 205.0 J K21 ×æðÜ21 CO 2 (g) 213.6 J K21 ×æðÜ21 H2O (l) 69.9 J K21 ×æðÜ21 ¥çÖç·ý¤Øæ CH 4 (g)12O 2 (g) ® CO 2 (g)12H 2 O(l) ·ð¤ çÜØð °ðÅþUæÂè ÂçÚUßÌüÙ (DSo) ·¤æ ×æÙ ãæð»æ Ñ (1) (2) 2108.1 J K21 mol21 (3) 237.6 J K21 mol21 (4) English : 19 Set : 06 ×æðÜ21 2242.8 J K21 ×æðÜ21 2108.1 J K21 ×æðÜ21 237.6 J K21 ×æðÜ21 2312.5 J K21 Hindi : 19 Set : 06 38. 39. The conjugate base of hydrazoic acid is : 38. (1) N23 (2) (1) N23 N2 3 (2) N2 3 (3) N2 2 (3) N2 2 (4) HN2 3 (4) HN2 3 In a monoclinic unit cell, the relation of 39. sides and angles are respectively : 40. ãæ§ÇþUæð$Áæ𧷤 °ðçâÇU ·¤æ â´Øé×è ÿææÚU ãñ Ñ (1) a5b ¹ c and a5b5g5908 (2) a ¹ b ¹ c and a5b5g5908 (3) a ¹ b ¹ c and b5g5908 ¹ a (4) a ¹ b ¹ c and a ¹ b ¹ g ¹ 908 The standard enthalpy of formation 40. (D f H o 298 ) for methane, CH 4 is 274.9 kJ mol21. In order to calculate the average energy given out in the formation °·¤ ×æðÙæðçÜçÙ·¤ °·¤·¤ âñÜ ×ð´ Âÿææ𴠷𤠷¤æðÙæ çÕÎé¥æð´ âð âÕÏ ·ý¤×æÙéâæÚU ãæðÌð ã´ñ Ñ (1) a5b ¹ c ¥æñÚU a5b5g5908 (2) a ¹ b ¹ c ¥æñÚU a5b5g5908 (3) a ¹ b ¹ c ¥æñÚU b5g5908 ¹ a (4) a ¹ b ¹ c ¥æñÚU a ¹ b ¹ g ¹ 908 ×èÍðÙ, CH4, ÕÙÙð ·¤è ×æÙ·¤ °ðÍñËÂè (DfHo298) 274.9 kJ ×æðÜ21 ãæðÌè ãñÐ §ââð C2H ¥æÕÏ ·¤è ×Ø×æÙ ª¤Áæü ·¤æ ¥æ·¤ÜÙ ·¤ÚUÙð ·ð¤ çÜØð çÙÙæð´ âð 緤⠰·¤ ·¤æð ÁæÙÙæ ¥æßàØ·¤ ãæð»æ? of a C2H bond from this it is necessary to know which one of the following ? (1) the dissociation energy of the (1) (2) hydrogen molecule, H2. the first four ionisation energies of H2 ¥æé (2) ·¤æÕüÙ ·¤è ÂãÜè ¿æÚU ¥æØÙÙ ª¤Áæü°¡Ð (3) H2 ·¤è çßØæðÁÙ ª¤Áæü ¥æñÚU ·¤æÕüÙ (»ýð$Ȥæ§Å)U ·¤è ª¤ßüÂæÌÙ ª¤ÁæüÐ (4) ·¤æÕüÙ ·¤è ÂýÍ× ¿æÚU ¥æØÙÙ ª¤Áæü°¡ ¥æñÚ ãæ§ÇþUæðÁÙ ·¤è §ÜñÅþUæòÙ ÕÏéÌæÐ carbon. (3) the dissociation energy of H2 and enthalpy of sublimation of carbon (graphite). (4) the first four ionisation energies of carbon and electron affinity of ·¤è çßØæðÁÙ ª¤ÁæüÐ hydrogen. English : 20 Set : 06 Hindi : 20 Set : 06 41. hydrolysis of xenon fluorides ? $ÁèÙæÙ ÜæðÚUæ§ÇUæð´ ·ð¤ ÁÜèØ ¥ÂæÅUÙ âð çÙÙ $ÁèÙæÙ¥æâæð-Øæñç»·¤æð´ ×ð´ âð 緤ⷤæð Âýææ Ùãè´ ç·¤Øæ Áæ â·¤Ìæ ãñ? (1) (1) Which of the following xenon-OXO 41. compounds may not be obtained by (2) (3) (4) 42. Xe O2F2 Xe O F4 (2) Xe O3 Xe O4 (3) (4) Excited hydrogen atom emits light in the 42. ultraviolet region at 2.4731015 Hz. With this frequency, the energy of a single Xe O2F2 Xe O F4 Xe O3 Xe O4 ÂÚU ÂÚUæÕñ´»Ùè ÿæðæ ×ð´ ©æðçÁÌ ãæ§ÇþUæðÁÙ ÂÚU×ææé Âý·¤æàæ ©âçÁüÌ ·¤ÚUÌæ ãñÐ §â ¥æßëçæ ·ð¤ âæÍ °·¤ ¥·ð¤Üð ȤæðÅUæòÙ ·¤è ª¤Áæü ãæð»è Ñ 2.47310 15 Hz (h56.63310234 Js) photon is : (h56.63310234 Js) 43. (1) 8.041310 240 J (1) 8.041310240 J (2) 2.680310 219 J (2) 2.680310219 J (3) 1.640310 218 J (3) 1.640310218 J (4) 6.111310 217 J (4) 6.111310217 J largest number of oxidation states ? çÙÙæð´ ×ð´ âð ·¤æñÙ °·¤ ¥çÏ·¤Ì× â´Øæ ×ð´ ¥æòâè·¤ÚUæ ¥ßSÍæ°¡ çιæÌæ ãñ? (1) Ti (22) (1) Ti (22) (2) V(23) (2) V(23) (3) Cr (24) (3) Cr (24) (4) Mn (25) (4) Mn (25) Which one of the following exhibits the 43. English : 21 Set : 06 Hindi : 21 Set : 06 44. Copper becomes green when exposed to 44. moist air for a long period. This is due to : (1) the formation of a layer of cupric oxide on the surface of copper. (2) the formation of a layer of basic carbonate of copper on the surface ÜÕð â×Ø Ì·¤ »èÜè ßæØé ·ð¤ â·ü¤ ×ð´ ÚUãÙð ÂÚU ·¤æÂÚU ãÚUæ ãæð ÁæÌæ ãñÐ §â·¤æ ·¤æÚUæ ãæðÌæ ãñ Ñ (1) ·¤æÂÚU ÌÜ ÂÚU ØêçÂý·¤ ¥æòâæ§ÇU ·¤æ ÂÚUÌ ÕÙÙæÐ (2) ·¤æÂÚU ÌÜ ÂÚU ·¤æÂÚU ·ð¤ ÿææÚUèØ ·¤æÕæðüÙðÅU ·¤æ ÂÚUÌ ÕÙÙæÐ of copper. (3) the formation of a layer of cupric (3) hydroxide on the surface of copper. (4) the formation of basic copper (4) sulphate layer on the surface of the ·¤æÂÚU ÌÜ ÂÚU ØêçÂý·¤ ãæ§ÇþU¥æòâæ§ÇU ·¤æ ÂÚUÌ ÕÙÙæÐ ÏæÌé ÌÜ ÂÚU ÿææÚUèØ ·¤æÂÚU âË$Èð¤ÅU ·¤æ ÂÚUÌ ÕÙÙæÐ metal. 45. Among the following species the one 45. which causes the highest CFSE, Do as a çÙÙ ÂÎæÍæðZ ×ð´ âð ·¤æñÙ °·¤ çÜ»ñÇU M¤Â ×ð´ ¥çÏ·¤Ì× CFSE, Do ·¤æ ·¤æÚUæ ÕÙÌæ ãñ? ligand is : (1) CN2 (1) CN2 (2) NH3 (2) F2 (3) NH3 CO (4) (3) (4) 46. Similarity in chemical properties of the 46. atoms of elements in a group of the Periodic table is most closely related to : (1) atomic numbers (2) atomic masses (3) number of principal energy levels (4) number of valence electrons English : 22 Set : 06 F2 CO ¥æßÌü âæÚUæè ·ð¤ ç·¤âè »ýé ×ð´ Ìß ·ð¤ ÂÚU×ææé¥æð´ ·ð¤ ÚUæâæØçÙ·¤ »éææð´ ×ð´ ¥çÏ·¤Ì× â×æÙÌæ ·ð¤ ·¤æÚUæ ãæðÌð ãñ´ Ñ (1) ÂÚU×ææé·¤ ÙÕÚU (2) ÂÚU×ææé·¤ ÎýÃØ×æÙ (3) ÕǸð (Principal) ª¤Áæü SÌÚUæð´ ·¤è â´Øæ (4) ßñÜðâè §ÜñÅþUæòÙæð´ ·¤è â´Øæ Hindi : 22 Set : 06 47. Which of the following arrangements 47. represents the increasing order (smallest to largest) of ionic radii of the given species O22, S22, N32, P32 ? 48. çÙÙ ÃØßSÍæ¥æð ´ ×ð ´ âð ·¤æñ Ù çÎØð »Øð ÂÎæÍæð Z O22, S22, N32, P32 ·¤è ¥æØçÙ·¤ çæØæ¥æð´ ·ð¤ ÕɸÌð ·ý¤× (ØêÙÌ× âð ßëãæ×) ·¤æð ÂýSÌéÌ ·¤ÚUÌè ãñ? (1) O22< N32< S22 < P32 (1) O22< N32< S22 < P32 (2) O22< P32< N32 < S22 (2) O22< P32< N32 < S22 (3) N32 < O22< P32 < S22 (3) N32 < O22< P32 < S22 (4) N32< S22< O22 < P32 (4) N32< S22< O22 < P32 Global warming is due to increase of : (1) 48. methane and nitrous oxide in â´âæçÚU·¤ ©ææÂÙ ·¤æ ·¤æÚUæ ãæðÌæ ãñ ßæØé×ÇUÜ ×ð´ ÕɸÙæ Ñ (1) ×èÍðÙ ¥æñÚU Ùæ§ÅþUâ ¥æòâæ§ÇU ·¤æÐ atmosphere (2) (3) (4) 49. methane and CO2 in atmosphere methane and O3 in atmosphere (2) (3) methane and CO in atmosphere (4) Hydrogen peroxide acts both as an 49. oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases H 2 O 2 acts as a reducing agent in acid ×èÍðÙ ¥æñÚU CO2 ·¤æÐ ×èÍðÙ ¥æñÚU O3 ·¤æÐ ×èÍðÙ ¥æñÚU CO ·¤æÐ ãæ§ÇþUæðÁÙ ÂÚU¥æòâæ§ÇU ¥Â¿æØ·¤ ÌÍæ ©Â¿æØ·¤ ÎæðÙæð´ Âý·¤æÚU âð ÃØßãæÚU ·¤ÚUÌæ ãñ ¥æñÚU Øã çÙÖüÚU ·¤ÚUÌæ ãñ ¥çæç·ý¤Øæ ·¤ÚUÙð ßæÜð SÂèàæè$Á ·ð¤ SßæÖæß ÂÚUÐ çÙÙ ×ð́ âð ç·¤â·ð¤ âæÍ H2O2 ¥ÜèØ ×æØ× ×ð́ ¥Â¿æØ·¤ ·ð¤ M¤Â ×ð´ ç·ý¤Øæ ·¤ÚUÌæ ãñ? medium ? (1) MnO42 (1) MnO42 (2) Cr2 O 7 (2) Cr2 O 7 (3) SO 3 (3) SO 3 (4) KI (4) KI 22 22 English : 23 Set : 06 22 22 Hindi : 23 Set : 06 50. Which one of the following complexes will 50. most likely absorb visible light ? (At nos. Sc521, Ti522, V523, Zn530) (1) (2) (3) (4) [Sc(H2O)6]31 Zn530) ]41 [Ti (NH3)6 [V(NH3)6]31 (1) (2) [Zn(NH3)6]21 51. çÙÙ ·¤æòÜðâæð´ (â´·¤ÚUæð´) ×ð´ âð ·¤æñÙ ÎëàØ Âý·¤æàæ ·¤æð ¥ßàææðçáÌ ·¤ÚUÙð ·¤è âßæüçÏ·¤ â´ÖæßÙæ ÚU¹Ìæ ãñ? ( ÂÚU × ææé ·ý ¤ ×æ´ · ¤ Sc521, Ti522, V523, (3) (4) on mercuration- 51. [Sc(H2O)6]31 [Ti (NH3)6]41 [V(NH3)6]31 [Zn(NH3)6]21 ×ÚUØêÚðUàæÙ-¥×ÚUØêÚðUàæÙ ÂÚ demercuration produces the major U âð Âýææ ×éØ ç·ý¤ØæÈ¤Ü product : ãæðÌæ ãñ Ñ (1) (1) (2) (2) (3) (3) (4) (4) 52. In the Victor-Meyers test, the colour given by 18, 28 and 38 alcohols are respectively : 52. (1) Red, colourless, blue (2) Red, blue, colourless (3) Colourless, red, blue (4) Red, blue, violet English : 24 Set : 06 çßÅUÚU ×ðØÚU ·ð¤ ÂÚUèÿææ ç·ý¤Øæ ×ð´ 18, 28 ¥æñÚU °ðË·¤æðãæÜæð´ mæÚUæ çÎØæ Ú´U» ·ý¤×æÙéâæÚU ãæðÌæ ãñ Ñ (1) ÜæÜ, Ú´U»ãèÙ, ÙèÜæ (2) ÜæÜ, ÙèÜæ, Ú´U»ãèÙ (3) Ú´U»ãèÙ, ÜæÜ, ÙèÜæ (4) ÜæÜ, ÙèÜæ, Áæ×Ùè Hindi : 24 38 ·ð¤ Set : 06 53. Conversion of benzene diazonium chloride 53. to chloro benzene is an example of which of the following reactions ? 54. (1) Claisen (2) Friedel-craft (3) Sandmeyer (4) Wurtz In the presence of peroxide, HCl and HI 54. do not give anti-Markownikoffs addition Õñ$ÁèÙ ÇUæØæ$ÁæðçÙØ× ÜæðÚUæ§ÇU ·¤æ ÜæðÚUæð Õñ$ÁèÙ ×ð´ ÕÎÜÙæ §Ù×ð´ âð 緤⠥çÖç·ý¤Øæ ·¤æ ©ÎæãÚUæ ãæðÌæ ãñ? (1) Üð$ÁÙ (2) Èý¤èÇUÜ-·ý¤æ$$ÅU (3) âñ´ÇU×æØÚU (4) ßéÅ÷üU $Á ÂÚU¥æòâæ§ÇU ·¤è ©ÂçSÍçÌ ×ð´ °ðË·¤èÙæð´ ·¤æð HCl ¥æñÚU HI °ðÅUè×æÚU·¤æðÙè·¤æȤ Øæð» Ùãè´ ÎðÌð Øæð´ ç·¤ Ñ to alkenes because : (1) One of the steps is endothermic in (1) HCl and HI (2) Both HCl and HI are strong acids (2) (3) HCl is oxidizing and the HI is (3) reducing (4) All the steps are exothermic in HCl (4) and HI 55. The major product obtained in the photo 55. catalysed bromination of 2-methylbutane ·ð¤ Âý·¤æàæ mæÚUæ ©ÂýðçÚUÌ Õýæð×èÙðàæÙ ×ð´ ÕǸæ ç·ý¤ØæÈ¤Ü ãæðÌæ ãñ Ñ (1) 1-bromo-2-methylbutane (1) (2) 1-bromo-3-methylbutane (2) (3) 2-bromo-3-methylbutane (3) (4) 2-bromo-2-methylbutane (4) Set : 06 ¥æñÚU HI ·ð¤ âÕÏæð´ ×ð´ âÖè ¿ÚUæ ª¤c×æÂýÎ ãñ´Ð HCl 2- ×ðçÍÜØéÅðUÙ is : English : 25 ¥æñ Ú U HI ·ð ¤ âÕÏ ×ð ´ °·¤ ¿ÚU æ ª¤c×æàææðáè ãñÐ HCl ¥æñÚU HI ÎæðÙæð´, ÂýÕÜ ¥Ü ãñ´Ð HCl ©Â¿æØ·¤ ¥æñÚU HI ¥Â¿æØ·¤ ãñÐ HCl 1-Õýæð×æð-2-×ðçÍÜØéÅðUÙ 1-Õýæð×æð-3-×ðçÍÜØéÅðUÙ 2-Õýæð×æð-3-×ðçÍËæØéÅðUÙ 2-Õýæð×æð-2-×ðçÍÜØéÅðUÙ Hindi : 25 Set : 06 56. sigma(s) and two pi(p) bonds ? çÙÙ ¥æé¥æð´ ×ð´ âð 緤⠥æé ×ð´ Îæð çâ×æ (s) ¥æñÚU Îæð Âæ§ü (p) ¥æÕÏ ãæðÌð ãñ´? (1) C 2H 4 (1) C2H2Cl2 (3) Which of the following molecules has two 56. (2) (3) (4) 57. N2F2 (2) HCN (4) Which one of the following acids does not 57. exhibit optical isomerism ? 58. 59. (1) Lactic acid (2) Tartaric acid (3) Maleic acid (4) a-amino acids Aminoglycosides are usually used as : (1) antibiotic (2) analgesic (3) hypnotic (4) antifertility 58. Which of the following will not show 59. C2H2Cl2 HCN §Ù×ð´ âð ·¤æñÙ ØêÅUæÚUæðÅðUàæÙ Ùãè´ çιæØð»æ? (1) Maltose (1) (2) Lactose (2) (3) Glucose (3) (4) Sucrose (4) Set : 06 N2F2 çÙÙ ¥Üæð´ ×ð´ âð ·¤æñÙ Âý·¤æàæèØ â×æßØßÌæ Ùãè´ çιæÌæ? (1) ÜñçÅU·¤ °ðçâÇU (2) ÅUæÚUÅñUçÚU·¤ °çâÇU (3) ×ñÜè·¤ °çâÇU (4) a- °×æØÙæð´ °ðçâÇU ¥×æØÙæðÜ槷¤æðâæ§ÇUæð´ ·¤æð ÂýæØÑ çÙÙ ç·¤â Âý·¤æÚU ÂýØæð» ç·¤Øæ ÁæÌæ ãñ? (1) °ðÅUè ÕæØæðçÅU·¤ M¤Â ×ð´ (ÂýçÌ Áñçß·¤) (2) °ðÙÜÁñçâ·¤ M¤Â ×ð´ (ÂèǸæ Ùæàæ·¤) (3) çãÂÙæçÅU·¤ M¤Â ×ð´ (çÙÎýæ ÂýÎ) (4) °ðÅUè ȤÚUçÅUçÜÅUè M¤Â ×ð´ (°ðÅUè çÙáð¿·¤) mutarotation ? English : 26 C2H 4 ×æËÅUæð$Á ÜñÅUæð$Á Üê·¤æð$Á âê·ý¤æð$Á Hindi : 26 Set : 06 60. Phthalic acid reacts with resorcinol in the 60. presence of concentrated H2SO4 to give : (1) Phenolphthalein (2) Alizarin (3) Coumarin (4) Fluorescein English : 27 Set : 06 âæÎý H 2SO4 ·¤è ©ÂçSÍçÌ ×ð ´ Íñ ç Ü·¤ °ð ç âÇU çÚU$ÁæÚUâèÙæÜ âð ¥çÖç·ý¤Øæ ·¤ÚU ÎðÌæ ãñ Ñ (1) çȤÙæËȤÍðÜèÙ (2) °ðçÜ$ÁðÚUèÙ (3) ·é¤×ýèÙ (4) $ÜæðÚðUâèÙ Hindi : 27 Set : 06 Öæ» C »çæÌ PART C MATHEMATICS 61. A relation on the set A5{x : ?x? < 3, xeZ}, 61. where Z is the set of integers is defined by R5{(x, y) : y 5? x ? , x ≠2 1 }. Then the number of elements in the power set of R â×éæØ A5{x : ?x? < 3, xeZ}, Áãæ¡ Z ÂêææZ·¤æð´ ·¤æ â×é æØ ãñ , ÂÚU °·¤ â´ Õ ´ Ï R, R5{(x, y) : y5?x?, x ≠2 1 } mæÚUæ ÂçÚUÖæçáÌ ãñÐ Ìæð R ·ð¤ ææÌ â×éæØ ×ð´ ¥ßØßæð´ ·¤è â´Øæ ãñ Ñ is : 62. (1) 32 (1) 32 (2) 16 (2) 16 (3) 8 (3) 8 (4) 64 (4) 64 ×æÙæ z ¹ 2i Let z ¹ 2i be any complex number such 62. that z2 i is a purely imaginary number. z1 i Then z1 z2 i z1 i 1 is : z z1 °·¤ àæé h ·¤æËÂçÙ·¤ â´ Øæ ãñ , Ìæð 1 z ãñ Ñ (1) 0 (1) (2) any non-zero real number other (2) 1 ·ð¤ ¥çÌçÚUæ ·¤æð§ü àæêØðæÚU ßæSÌçß·¤ â´ØæÐ ·¤æð§ü àæêØðæÚU ßæSÌçß·¤ â´ØæÐ °·¤ àæéh ·¤æËÂçÙ·¤ â´ØæÐ than 1. 63. ·¤æð§ü °ðâè âç×æ â´Øæ ãñ ç·¤ (3) any non-zero real number. (3) (4) a purely imaginary number. (4) 0 x21?2x23?2450, is : â×è·¤ÚU æ x21?2x23?2450, ·ð ¤ ×ê Ü æð ´ ·¤æ Øæð»È¤Ü ãñ Ñ (1) 2 (1) 2 (2) 22 (2) 22 (3) (4) 2 (3) (4) 2 The sum of the roots of the equation, 63. 2 2 English : 28 Set : 06 2 2 Hindi : 28 Set : 06 64. 64. If a2 65. 66. b2 ( a1l )2 ( a2l )2 c2 ( b1l )2 ( b2l )2 a2 a2 b2 ( c1l 5k l a b c , l ≠ 0, 1 1 1 )2 ( c2l )2 ØçÎ c2 b2 ( a1l )2 ( a2l )2 c2 ( b1l )2 ( b2l )2 ãñ, Ìæð k ÕÚUæÕÚU ãñ Ñ (1) 4labc (1) 4labc (2) 24labc (2) 24labc (3) 4l2 (3) 4l2 (4) 24l2 (4) 24l2 y x 1 2 If A 5 and B 5 x be such 65. 3 21 2 1 ØçÎ 6 that AB 5 , then : 8 6 AB 5 , ãñ, 8 (1) y52x (1) y52x (2) y522x (2) y522x (3) y5x (3) y5x (4) y52x (4) y52x digits 1, 1, 2, 2, 2, 3, 4, 4. The number of such numbers in which the odd digits do b2 ( c1l 5k l a b c , l ≠ 0, 1 1 1 ( c2l then k is equal to : 8 - digit numbers are formed using the 66. a2 )2 )2 x 1 2 A5 3 21 2 ÌÍæ c2 y B 5 x °ðâð 1 ãñ´ ç·¤ Ìæð Ñ ¥´·¤æð´ 1, 1, 2, 2, 2, 3, 4, 4 ·ð¤ ÂýØæð» âð, ¥æÆU ¥´·¤èØ â´Øæ°¡ ÕÙæ§ü »§ü ãñд °ðâè â´Øæ¥æð´ ·¤è â´Øæ çÁÙ×ð´ çßá× ¥´·¤ çßá× SÍæÙæð´ ÂÚU Ù ¥æØð,´ ãñ Ñ not occupy odd places, is : (1) 160 (1) 160 (2) 120 (2) 120 (3) 60 (3) 60 (4) 48 (4) 48 English : 29 Set : 06 Hindi : 29 Set : 06 67. x 55 If 2 1 is expanded in the ascending 67. 3 ØçÎ x 55 21 3 ·¤æ x ·¤è ¥æÚUæðãè ææÌæð´ ×ð´ ÂýâæÚU ·¤ÚUÙð ÂÚU, ÂýâæÚU ×ð´ Îæð ·ý¤ç×·¤ ÂÎæð´ ×ð´ x ·¤è ææÌð´ â×æÙ ãñ´, Ìæð Øã ÂÎ ã´ñ Ñ powers of x and the coefficients of powers of x in two consecutive terms of the expansion are equal, then these terms are : 68. (1) 7th and 8th (1) (2) 8th (2) and 9th (3) 28th 29th (3) (4) 27th and 28th (4) and ÌÍæ 8 ßæ¡ 8 ßæ¡ ÌÍæ 9 ßæ¡ 28 ßæ¡ ÌÍæ 29 ßæ¡ 27 ßæ¡ ÌÍæ 28 ßæ¡ Let G be the geometric mean of two 68. ×æÙæ Îæð ÏÙ â´Øæ¥æð´ a ÌÍæ b ·¤æ »éææðæÚU ×æØ G ãñ positive numbers a and b, and M be the ÌÍæ 1 1 arithmetic mean of 1 and . If : G is b M a 4 : 5, then a : b can be : 69. 7 ßæ¡ 1 ÌÍæ 1 b a ·¤æ â×æÌÚU ×æØ (1) 1:4 1 : G 5 4 : 5 ãñ, M (1) 1 : 4 (2) 1:2 (2) 1:2 (3) 2:3 (3) 2:3 (4) 3:4 (4) 3:4 The least positive integer n such that 69. 12 2 2 2 1 2 2 2........ 2 n21 < , is : 3 100 3 3 ÏÙ ÂêææZ·¤ 12 4 (1) 4 (2) 5 (2) 5 (3) 6 (3) 6 (4) 7 (4) 7 Set : 06 Hindi : 30 ãñÐ ØçÎ Ìæð a : b ãæð â·¤Ìð ãñ´ Ñ ·¤æ ßã ØêÙÌ× ×æÙ çÁâ·ð¤ çÜØð 2 2 2 1 2 2 2........ 2 n21 < , 3 100 3 3 (1) English : 30 n M ãñ, ãñ Ñ Set : 06 70. Let f, g : R®R be two functions defined by 70. (2) Both statements I and II are true. (3) Statement I is true, statement II is 1 x sin , x ≠ 0 x , ±²Ë g ( x ) 5 x f ( x ) 0 , x50 mæÚUæ ÂçÚUÖæçáÌ ãñ´ Ñ ·¤ÍÙ I : x50 ÂÚU f °·¤ âÌÌ È¤ÜÙ ãñÐ ·¤ÍÙ II : x50 ÂÚU g °·¤ ¥ß·¤ÜèØ È¤ÜÙ ãñÐ 71. 1 , and g(x) is its 2 inverse function, then g9(7) equals : If f(x)5x22x15, x > (1) 1 2 3 (2) 1 13 (3) 1 3 (4) 1 2 13 English : 31 Set : 06 (4) ·¤ÍÙ I ¥âØ ãñ, ·¤ÍÙ (2) Statement I is false, statement II is true. (3) ·¤ÍÙ I ÌÍæ II ÎæðÙæð´ ¥âØ ãñ´Ð ·¤ÍÙ I ÌÍæ II ÎæðÙæð´ âØ ãñ´Ð ·¤ÍÙ I âØ ãñ, ·¤ÍÙ II ¥âØ ãñÐ (1) false. (4) ȤÜÙ ãñ´ Áæð f (x)5 Statement I : f is a continuous function at x50. Statement II : g is a differentiable function at x50. Both statements I and II are false. f, g : R®R Îæð 1 x sin , x ≠ 0 x , and g ( x ) 5 x f ( x ) 0 , x50 f (x)5 (1) ×æÙæ 71. ØçÎ f(x)5x22x15, x > II âØ ãñÐ 1 , ÌÍæ g(x) 2 §â·¤æ ÃØé·ý¤× ȤÜÙ ãñ, Ìæð g9(7) ÕÚUæÕÚU ãñ Ñ 1 3 (1) 2 (2) 1 13 (3) 1 3 (4) 2 Hindi : 31 1 13 Set : 06 72. all x e R. Then for all x : ×æÙæ R ÂÚU f ÌÍæ g Îæð °ðâð ¥ß·¤ÜÙèØ È¤ÜÙ ãñ ç·¤ âÖè x e R ·ð¤ çÜ° f 9(x) > 0 ÌÍæ g9(x) < 0 ãñ, Ìæð âÖè x ·ð¤ çÜ° Ñ (1) f(g(x)) > f (g(x21)) (1) f(g(x)) > f(g(x21)) (2) f(g(x)) > f (g(x11)) (2) f(g(x)) > f(g(x11)) (3) g(f(x)) > g (f(x21)) (3) g(f(x)) > g(f(x21)) (4) g(f(x)) < g (f(x11)) (4) g(f(x)) < g(f(x11)) Let f and g be two differentiable functions 72. on R such that f 9(x) > 0 and g9(x) < 0, for 73. 5 i If 11x41x55 ∑ ai ( 1 1 x ) , for all x in R, 73. i50 x e R ·ð¤ çÜ° 5 ∑ ai ( 1 1 x )i ãñ, Ìæð a2 ãñ Ñ 11x41x55 then a2 is : 74. ØçÎ âÖè i50 (1) 24 (1) 24 (2) 6 (2) 6 (3) 28 (3) 28 (4) 10 (4) 10 ∫( The integral sin 2 x cos2 x 3 sin x 1 cos 3 x) d x is 74. 2 â×æ·¤Ü ∫ sin 2 x cos 2 x ( sin 3 x 1 cos3 x )2 dx ÕÚUæÕÚU ãñ Ñ equal to : 1 (1) ( 1 1 cot x ) (2) 2 3 1 3 ( 1 1 tan 3 x ) sin 3 x (3) ( 1 1 cos3 x ) (4) 2 English : 32 1c cos 3 x 1c 1c 3 ( 1 1 sin 3 x ) 1c Set : 06 1 (1) ( 1 1 cot 3 x ) (2) 2 1 3 ( 1 1 tan 3 x ) sin 3 x (3) ( 1 1 cos3 x ) (4) 2 Hindi : 32 1c cos 3 x 1c 1c 3 ( 1 1 sin 3 x ) 1c Set : 06 75. If [ ] denotes the greatest integer function, 75. then the integral (2) p 2 0 (3) 21 (4) 2 (1) 76. p p 2 2 2 ∫ ( f ( x ) 1 x)d x 5 p 2 t , for all p t/2p, then f 2 is equal to : 3 (1) p (2) p 2 (3) (4) p 3 p 6 English : 33 Set : 06 °·¤ ×ãæ× Âê ææZ · ¤èØ È¤ÜÙ ãñ , Ìæð (2) p 2 0 (3) 21 (4) 2 (1) t [ ] p â×æ·¤Ü ∫ 0 [ cos x ] d x ÕÚUæÕÚU ãñ Ñ ∫ 0 [ cos x ] d x is equal to : If for a continuous function f(x), 76. 2p ØçÎ p 2 ØçÎ °·¤ âÌÌ È¤ÜÙ t /2p ·ð¤ çÜ° f(x) ·ð¤ çÜ°, âÖè t 2 2 ∫ ( f ( x ) 1 x)d x 5 p 2 t 2p p f 2 3 (1) p (2) p 2 (3) p 3 (4) p 6 Hindi : 33 ãñ , Ìæð ÕÚUæÕÚU ãñ Ñ Set : 06 77. The general solution of the differential 77. ¥ß·¤Ü â×è·¤ÚUæ dy equation, sin 2x 2 dx dy sin 2x 2 dx tan x 2 y 5 0 , (1) y tan x 5x1c (1) y tan x 5x1c (2) y cot x 5tan x1c (2) y cot x 5tan x1c (3) y tan x 5cot x1c (3) y tan x 5cot x1c (4) y cot x 5x1c (4) y cot x 5x1c (1) 4x23y57 If a line intercepted between the coordinate 78. axes is trisected at a point A(4, 3), which is nearer to x-axis, then its equation is : 79. ·¤æ ÃØæ·¤ ãÜ ãñ Ñ is : 78. tan x 2 y 5 0 çÙÎðüàææ´·¤ ¥ÿææð´ ·ð¤ Õè¿ ¥´Ìѹ´çÇUÌ °·¤ ÚðU¹æ, °·¤ çÕ´Îé A(4, 3) Áæð x- ¥ÿæ ·ð¤ Âæâ ãñ, ÂÚU Sæ×çæÖæçÁÌ ãæðÌè ãñ, Ìæð ©â·¤æ â×è·¤ÚUæ ãñ Ñ (1) 4x23y57 (2) 3x12y518 (2) 3x12y518 (3) 3x18y536 (3) 3x18y536 (4) x13y513 (4) x13y513 If the three distinct lines x12ay1a50, 79. x13by1b50 and x14ay1a50 are concurrent, then the point (a, b) lies on a : (1) circle (2) hyperbola (3) straight line (4) parabola English : 34 Set : 06 ØçÎ ÌèÙ çßçÖóæ Úð U ¹æ°¡ x12ay1a50, x13by1b50 ÌÍæ x14ay1a50 â´»æ×è ã´ñ, Ìæð çÕ´Îé (a, b) °·¤ Ñ (1) ßëæ ÂÚU çSÍÌ ãñ (2) ¥çÌ ÂÚUßÜØ ÂÚU çSÍÌ ãñ (3) âÚUÜ ÚðU¹æ ÂÚU çSÍÌ ãñ (4) ÂÚUßÜØ ÂÚU çSÍÌ ãñ Hindi : 34 Set : 06 80. For the two circles x 2 1y 2 516 and 80. x21y222y50, there is/are : 81. (1) one pair of common tangents (2) two pairs of common tangents (3) three common tangents (4) no common tangent Two tangents are drawn from a point 81. (22, 21) to the curve, y254x. If a is the angle between them, then ?tan a? is equal Îæð ßëææð´ x21y2516 ÌÍæ x21y222y50, ·ð¤ çÜ° ãñ/ã´ñ Ñ (1) ©ÖØçÙcÆU SÂàæü ÚðU¹æ¥æð´ ·¤æ °·¤ Øé×Ð (2) ©ÖØçÙcÆU SÂàæü ÚðU¹æ¥æð´ ·ð¤ Îæð Øé×Ð (3) ÌèÙ ©ÖØçÙcÆU SÂàæü ÚðU¹æ°´Ð (4) ·¤æð§ü ©ÖØçÙcÆU SÂàæü ÚðU¹æ Ùãè´Ð °·¤ çÕ´Îé (22, 21) âð °·¤ ß·ý¤ y254x ÂÚU Îæð SÂàæü ÚðU¹æ°¡ ¹è´¿è »§ü ãñ, ØçÎ ©Ù·ð¤ Õè¿ ·¤æ ·¤æðæ a ãñ, Ìæð ?tan a? ÕÚUæÕÚU ãñ Ñ to : (1) 1 3 (1) (2) 1 3 (2) 1 3 (3) 3 (3) 3 (4) 82. 1 3 3 (4) The minimum area of a triangle formed by any tangent to the ellipse 82. y2 x2 1 5 1 and the co-ordinate axes 16 81 3 Îèæüßëæ y2 x2 1 51 16 81 ÂÚU ¹è´¿è »§ü ç·¤âè SÂàæü ÚðU¹æ ÌÍæ çÙÎðüàææ´·¤ ¥ÿææð´ mæÚUæ ÕÙè çæÖéÁ ·¤æ ØêÙÌ× ÿæðæÈ¤Ü ãñ Ñ is : (1) 12 (1) 12 (2) 18 (2) 18 (3) 26 (3) 26 (4) 36 (4) 36 English : 35 Set : 06 Hindi : 35 Set : 06 83. A symmetrical form of the line of 83. intersection of the planes x5ay1b and â×ÌÜæð´ x5ay1b ÌÍæ ÚðU¹æ ·¤æ â×ç×Ì M¤Â ãñ Ñ z5cy1d ·¤è ÂýçÌÀðUÎè z5cy1d is : 84. (1) y 21 x2b z2d 5 5 a 1 c (1) y 21 x2b z2d 5 5 a 1 c (2) y 21 x 2 b2 a z 2 d2 c 5 5 a 1 c (2) y 21 x 2 b2 a z 2 d2 c 5 5 a 1 c (3) y 20 x2a z2c 5 5 b 1 d (3) y 20 x2a z2c 5 5 b 1 d (4) y 21 x 2 b2 a z 2 d2 c 5 5 b 0 d (4) y 21 x 2 b2 a z 2 d2 c 5 5 b 0 d ØçÎ â×ÌÜæð ´ If the distance between planes, 84. 4x22y24z1150 and ÌÍæ 4x22y24z1d50 ·ð¤ Õè¿ ·¤è ÎêÚUè 7, Ìæð d ãñ Ñ 4x22y24z1d50 is 7, then d is : 85. (1) 41 or 242 (1) (2) 42 or 243 (2) (3) 241 or 43 (3) (4) 242 or 44 (4) ∧ ∧ ∧ 4x22y24z1150 ¥Íßæ 242 42 ¥Íßæ 243 241 ¥Íßæ 43 242 ¥Íßæ 44 41 If x , y and z are three unit vectors in 85. ØçÎ çæ-çß×èØ ¥æ·¤æàæ ×ð´ three-dimensional space, then the âçÎàæ ãñ´, Ìæð minimum value of ∧ ∧ ∧ ∧ ∧ ∧ ?x 1 y?2 1 ?y 1 z?2 1 ?z 1 x?2 is : (1) (2) (3) (4) 3 2 3 (2) (3) (4) 6 English : 36 Set : 06 ∧ ÌÍæ ∧ z ÌèÙ ×ææ·¤ ∧ ∧ ∧ ∧ ∧ ∧ ?x 1 y?2 1 ?y 1 z?2 1 ?z 1 x?2 ·¤æ ØêÙÌ× ×æÙ ãñ Ñ (1) 3 3 ∧ x, y 3 2 3 3 3 6 Hindi : 36 Set : 06 86. Let X and M.D. be the mean and the mean 86. ×æÙæ n Âýðÿæææð´ xi, i51, 2, ....., n ·¤æ ×æØ deviation about X of n observations ·ð¤ âæÂðÿæ ©Ù·¤æ ×æØ çß¿ÜÙ M.D. ãñÐ ØçÎ ÂýØð·¤ Âýðÿææ ×ð´ 5 Õɸæ çÎØæ Áæ° Ìæð ÙØæ ×æØ ÌÍæ æØð ×æØ ·ð¤ âæÂðÿæ ©Ù·¤æ ×æØ çß¿ÜÙ ·ý¤×àæÑ ãñ Ñ X ÌÍæ X xi, i51, 2, ....., n. If each of the observations is increased by 5, then the new mean and the mean deviation about the new mean, respectively, are : 87. (1) X , M.D. (1) X , M.D. (2) X 15, M.D. (2) X 15, M.D. (3) X , M.D.15 (3) X , M.D.15 (4) X 15, M.D.15 (4) X 15, M.D.15 event : A5 the chosen number x satisfies â×éæØ {1, 2, 3, 4, ....., 100} ×ð´ âð °·¤ â´Øæ x ØæÎëÀUØæ ¿éÙè »§üÐ æÅUÙæ A ·¤æð ÂçÚUÖæçáÌ ·¤èçÁ° Ñ A5 ¿éÙè »§ü â´Øæ x ( x 2 10) ( x 2 50) /0 ( x 2 30) ( x 2 10) ( x 2 50) /0 ( x 2 30) A number x is chosen at random from the 87. set {1, 2, 3, 4, ....., 100}. Define the Ìæð P(A) ãñ Ñ Then P(A) is : (1) 0.71 (2) 0.70 (3) 0.51 (4) 0.20 English : 37 ·¤æð â´ÌécÅ ·¤ÚUÌè ãñÐ Set : 06 (1) 0.71 (2) 0.70 (3) 0.51 (4) 0.20 Hindi : 37 Set : 06 88. Statement I : The equation 88. (sin 21 x) 3 1(cos 21 x) 3 2ap 3 50 has a I: â×è·¤ÚUæ (sin21x)31(cos21x)32ap350 solution for all a/ 1 . 32 Statement II : For any x e R, sin21x1cos21x5 ·¤ÍÙ 1 ·ð¤ 32 ·¤ÍÙ II : a/ p and 2 çÜ° °·¤ ãÜ ãñÐ ç·¤âè ·ð¤ çÜ° xeR sin21x1cos21x5 p 2 ÌÍæ p 2 9p2 21 0 [ sin x2 [ . 4 16 p 2 9p2 21 0 [ sin x2 [ . 4 16 (1) Both statements I and II are true. (1) (2) Both statements I and II are false. (2) (3) Statement I is true and (3) ·¤ÍÙ I ÌÍæ II ÎæðÙæð´ âØ ãñ´Ð ·¤ÍÙ I ÌÍæ II ÎæðÙæð´ ¥âØ ãñ´Ð ·¤ÍÙ I âØ ãñ ÌÍæ ·¤ÍÙ II ¥âØ ãñÐ false and (4) ·¤ÍÙ I ¥SæØ ãñ, ÌÍæ ·¤ÍÙ II âØ ãñÐ statement II is false. (4) Statement I is ·¤æ âÖè statement II is true. 1 89. cos u 1 1 2cos u and If f (u) 5 2sin u 1 21 sin u 1 A and B are respectively the maximum and the minimum values of f (u), then 89. ØçÎ cos u 1 2cos u f (u) 5 2sin u 1 21 sin u 1 ãñ, ÌÍæ A ÌÍæ B ·ý¤×àæÑ f (u) ·ð¤ ¥çÏ·¤Ì× ÌÍæ ØêÙÌ× ×æÙ ãñ´, Ìæð (A, B) ÕÚUæÕÚU ãñ Ñ (A, B) is equal to : (1) (3, 21) (2) (4, 22 2 ) (1) (3, 21) (3) ( 21 2, 22 2) (2) (4, 22 2 ) (4) ( 21 2 , 21 ) (3) ( 21 2, 22 2) (4) ( 21 2 , 21 ) English : 38 Set : 06 Hindi : 38 Set : 06 90. Let p, q, r denote arbitrary statements. Then 90. the logically equivalent of the ×æÙæ p, q, r Sßð ÀU ·¤ÍÙ Îàææü Ì ð ãñ ´ Ð ·¤ÍÙ p Þ (q Ú r) ·¤æ Ìæç·ü¤·¤ â×ÌéËØ ãñ Ñ statement p Þ (q Ú r) is : (1) (p Ú q) Þ r (1) (p Ú q) Þ r (2) (p Þ q) Ú (p Þ r) (2) (p Þ q) Ú (p Þ r) (3) (p Þ ~q) Ù (p Þ r) (3) (p Þ ~q) Ù (p Þ r) (4) (p Þ q) Ù (p Þ ~r) (4) (p Þ q) Ù (p Þ ~r) -o0o- English : 39 -o0o- Set : 06 Hindi : 39 Set : 06