5/15/2020 Test Statistics: Quiz2 – 312_ﺑﺻرﯾﺎت ﻓﯾزﯾﺎﺋﯾﺔPHYS-4_31_01... My Institution Courses ﻣﺣﻣد ﻣﺣﻣد اﺣﻣد ﻓﺿﺎﻟﻲ Community 4 Services Edit Mode is: 312_ﺑﺻرﯾﺎت ﻓﯾزﯾﺎﺋﯾﺔPHYS-4_31_01_15_20202 Grade Center • ON ? Test Statistics: Quiz2 Test Statistics: Quiz2 The statistics are calculated based only on the attempts being used in the grading option (Last attempt, First attempt, Lowest Score, Highest Score, or Average of Scores). If Average of Scores is the grading option, then all attempts are included in the statistics. Name Quiz2 Attempt Score 4.40909 Attempts 11 (Total of 21 attempts for this assessment) Graded Attempts 11 Attempts that Need Grading 0 Instructions Alignments Question 1: Multiple Choice Average Score 0.36363 points The criterion for far- eld di raction is such that the distance from the slit to the screen is given by Correct Percent Answered L << (area of aperture)/λ 9.09% L>> (area of aperture)/λ 72.727% L= (area of aperture)/λ 18.181% L >>λ /(area of aperture) 0.00% Unanswered 0.00% https://lms.jazanu.edu.sa/webapps/assessment/stats/stats.jsp?outcome_definition_id=198564&course_id=_69117_1 1/5 5/15/2020 Test Statistics: Quiz2 – 312_ﺑﺻرﯾﺎت ﻓﯾزﯾﺎﺋﯾﺔPHYS-4_31_01... Question 2: Multiple Choice Average Score 0.45454 points Consider a parallel beam of 546 nm of width b = 0.5 mm propagating across the room, a distance of 10 m. what is the nal width of the beam due to di raction spreading? Correct Percent Answered 22 mm 90.909% 44 mm 0.00% 66 mm 0.00% 88 mm 0.00% Unanswered 9.09% Question 3: Multiple Choice Average Score 0.5 points If there are N number of slits in a grating spectra, then how many secondary maximas are there? Correct Percent Answered N 0.00% N–1 0.00% N–2 100.00% 2N 0.00% Unanswered 0.00% Question 4: Multiple Choice Average Score 0.45454 points Assuming we fully illuminate the grating from the previous problem (a = 2500nm), how many orders can be seen when resolve the Na lines (589 nm, 589.6 nm)? Correct Percent Answered 2 9.09% 3 0.00% 4 90.909% https://lms.jazanu.edu.sa/webapps/assessment/stats/stats.jsp?outcome_definition_id=198564&course_id=_69117_1 2/5 5/15/2020 Test Statistics: Quiz2 – 312_ﺑﺻرﯾﺎت ﻓﯾزﯾﺎﺋﯾﺔPHYS-4_31_01... 5 0.00% Unanswered 0.00% Question 5: Multiple Choice Average Score 0.45454 points What is the Rayleigh's criterion for just-resolvable images? Correct Percent Answered The primary maximum of the rst coincides with the primary maximum of the second 0.00% The primary maximum of the rst coincides with the 1st secondary maximum of the second 0.00% The primary maximum of the rst coincides with the 1st minimum of the second 90.909% The primary maximum of the rst coincides with the 2nd minimum of the second 0.00% Unanswered 9.09% Question 6: Multiple Choice Average Score 0.40909 points The two headlights of an approaching automobile are 1.5 m apart. Assume the pupil diameter is 4.3 mm and the wavelength of light is 540 nm. What is the the limit of resolution Correct Percent Answered 50x10-6 rad 0.00% 100x10-6 rad 0.00% 150x10-6 rad 81.818% 200x10-6 rad 9.09% Unanswered 9.09% https://lms.jazanu.edu.sa/webapps/assessment/stats/stats.jsp?outcome_definition_id=198564&course_id=_69117_1 3/5 5/15/2020 Test Statistics: Quiz2 – 312_ﺑﺻرﯾﺎت ﻓﯾزﯾﺎﺋﯾﺔPHYS-4_31_01... Question 7: Multiple Choice Average Score 0.36363 points A di raction grating has 4000 lines/cm. What is the dispersive power of the grating in the third order spectrum in the wavelength region of 500 nm ? Correct Percent Answered 5000 0.00% 10000 0.00% 15000 72.727% 20000 18.181% Unanswered 9.09% Question 8: Multiple Choice Average Score 0.5 points For single slit Di raction, what is the path di erence between the two ends of the slit? Correct Percent Answered Δ = b sin θ 100.00% Δ = b cos θ 0.00% Δ = cos θ 0.00% Δ=0 0.00% Unanswered 0.00% Question 9: Multiple Choice Average Score 0.40909 points The shortest wavelength of light present in a given source is 600 nm. What is the free spectral range in the 2nd order of grating di raction? Correct Percent Answered 150 nm 0.00% 300 nm 81.818% 600 nm 0.00% 1200 nm 9.09% Unanswered 9.09% https://lms.jazanu.edu.sa/webapps/assessment/stats/stats.jsp?outcome_definition_id=198564&course_id=_69117_1 4/5 5/15/2020 Test Statistics: Quiz2 – 312_ﺑﺻرﯾﺎت ﻓﯾزﯾﺎﺋﯾﺔPHYS-4_31_01... Question 10: Multiple Choice Average Score 0.5 points Resolving power of grating is terms of number of slits N and di raction order m is given by Correct Percent Answered m/N 0.00% N/m 0.00% N 0.00% mN 100.00% Unanswered 0.00% ← OK https://lms.jazanu.edu.sa/webapps/assessment/stats/stats.jsp?outcome_definition_id=198564&course_id=_69117_1 5/5
