THE ASIAN SCHOOL, DEHRADUN
HOLIDAY HOMEWORK FOR SUMMER VACATION 2012 FOR CLASS XII
English:
1. Read the lesson ‘should lizard hit mommy?’ and ‘Memories of childhood’ in Vistas and answer the questions that follow in a separate
note book.
2. You have read reports about the commercialization of sports and its effect on sports persons, especially cricketers. Write an article for
your school magazine about the tendency of the Indian public to go overboard in felicitating cricketers (150 words)
Economics:
Solve the numerical questions:
Price elasticity of Demand:
Q1) a) Price of the commodity x falls from Rs 5/kg to Rs 4/kg and the demand of consumer A for it rises from 4kg to 6kg. Express your opinion
regarding the nature of elasticity of commodity x.
b) If there is no change in the quantity demanded of commodity x, what will be the nature of price elasticity of demand.
Q2) As a result of 10% fall in price of a good, its demand rises from 100 units to 120 units. Find out the price elasticity?
Q3) Price of a commodity falls from Rs 4 to 3 per unit. As a result total expenditure on it rises from Rs 200 to 300. Find out the price elasticity of
demand by percentage method.
Q4) When price of the good increases from Rs 10 to Rs 15 per unit, total expenditure on the commodity increases from Rs 1000 to Rs 1200. Find
elasticity of demand.
Q5) Given the following information about a firm, indentify the stages of production.
Units of Labour
TP
AP
MP
1
4
2
12
3
24
4
32
5
36
6
36
7
28
8
16
Q7) Complete the following table:
Units
Tc
AFc
AC
VC
1
20
6
2
26
3
3
39
2
Q8) Complete the following table:
Unit
Tvc
Avc
Mc
1
90
30
27
3
27
180
30
Q9) Calculate MC, given the following information also find AFC.
Output (Unit)
TVc
TFC
0
500
1
400
5
1600
Q10) Complete the following table:
Units
TC
AVC
MC
1
90
30
2
27
3
27
4
180
30
Q11) Calculate marginal revenue using following information.
Price
Sale/Demand
10
100
9
110
Q12) Complete the following table:
Unit
AR
MR
TR
1
15
2
26
3
11
4
3
Q13) Find MR when TR increases from Rs 1500 to Rs 2000, and output increases from 100 units to 150 units.
Q14) Find producer’s equilibrium from the following:
Units
TR
TC
5
15
18
6
20
22
7
25
26
8
30
27
9
35
30
10
40
38
Q15) Find the profit maximising level of output:
Units
TR
MC
1
12
15
2
26
9
3
34
6
4
40
3
5
42
3
Q16) On the basis of the information given below, determine the level of output at which the producer will be in equilibrium use the marginal costmarginal revenue approach. Give reasons:
Output
AR
TC
1
7
8
2
7
15
3
7
21
4
7
26
5
7
33
6
7
41
Q17) Commodities x and y have equal price elasticity of supply. The supply of x rises from 400 units to 500 units due to a 20% rise in its price.
Calculate the percentage fall in supply of 4 if its price falls by 8%.
Q18) From the following schedule, calculate the price elasticity of supply.
Price per unit
TR
5
800
6
1200
Q19) A fruit seller sells 56 kg per day when price of apples is Rs7/kg. when price rises to Rs 8/kg, how much quantity of the apples will the seller sell
when elasticity is unitary in this case?
Q20) State whether the following statements are true or false.
a) AC falls only when MC falls.
b) The difference between average total cost and average variable cost is constant.
c) When total revenue is maximum, marginal revenue is also maximum.
Mathematics:
a) Matrix (Linear equation in these variables) 10 Questions from R.D.Sharma.
b) Determinant 10 Question based on properties. From R.D.Sharma.
c) Differentiation Extra question from R.D.Sharma.
(i)
Product rule
10 question
(ii)
Quotient rule
10 question
(iii)
Chain rule
20 question
(iv)
Implicit function
8 question
(v)
Log function
14 question
(vi)
Parametric form
8 question
(vii)
Higher order desivatiour
15 question
(viii)
Rate Measure
10 question
(ix)
Tangent & Normal
15 question
History: ProjectCollect illustration of 10 things made of stone, metal and clay produced and used at present. Match these with pictures of the Harappan
Civilisation in this chapter, and discuss the similarities and differences that you find.
Work booka) Lon on to – http://www.harappa.com/har/harres O.html. find out about Harappan civilization and culture. Compile the printouts into an
article giving it a heading Harappan civilization.
b) Write short essay type questions.
i) Discuss the main features of Mauryan administration, ii) which of these elements are evident in the Ashokan inscriptions that you have
studies? Iii) Discuss the notions of kingship that developed in the post – Mauryan period.
Physics: prepare a project report on any one of the topic:
(i) Project work in heating Effect and magnetic effect of current (ii) Project work on Resistors (iii) Project work on capacitor (iv) Project work
on Potentiometer and comparison with voltmeter (v) Project work on Electromagnetic Inducation.
(ii) Complete NCERT Ex. Case in i) Electrostatics ii) current electricity
Chemistry :
Prepare a comprehensive project report (Investigatory) on any one of the following topics. (i) Study of the presence of oxalate ions in guova
fruit of different stages of ripening. (ii) Study of quantity of casein present in different samples of milk. (iii) Study of common food adulterants
in fats, oils, butter, sugar, turmeric powder, chilli powder and pepper (iv) Comparative study of the rate of fermentation of following materials
wheat flour, gram flour, potato juice, carrot juice etc. (v) Study of digestion of starch by salivary amylase and effect of pH and temperature on
it (vi) Crystallography (vii) Analysis of fertilizers (viii) Study of setting of cement (ix) Spectroscopy (x) Study of caffeine in tea samples (xi)
preparation of soyabean milk (xii) Comparing the foaming capacity of soaps (xiii) Study the change in emf of a Daniel cell. (xiv) Study the
presence of insecticides and pesticides in fruits and vegetables. (xv) Study the various types of essential oils.
Biology:
Make an investigatory project report on any one of the following topicsTest-tube babies/ DNA-fingerprinting/ Gene therapy/ Genetic disorders/ Female foeticide/ Assisted reproductive technologies/ Bacillus
thuringiensis/ medicinal plants/Biopesticides/ vermicomposting/ maintenance of aquarium/ ovarian cyst/ STD/ gene cloning/ AIDS/ Ascariasis/
Malaria/ leukemia/ Biotechnology/ Genetic Engineering/sexually transmitted diseases/ blood and blood groups/ jim Corbett national park/
Extinction of species.
Instructions: (i) write the project report on A-4 size plain paper in your own hand writing.
(ii) make the project investigatory by pasting concerned colourful pictures, cuttings from magazines and news papers, by collecting data, drawing
bar graphs etc.
Account:
a) Create your own company with Authorised capital, issued capital, subscribe capital.
b) Make a list of atleast 70 share holders issued them shares make all the installments ( application, allotment, first call, second and final
call)
c) Make provision for call in arrears, forfeitures and reissue of shares.
d) Prepare journal and ledger for the same and show the above transaction in companies balance sheet.
Computer:
Write a C++ program to perform various operations on a string class without using language supported built-in string functions. The
operations on a class are:a) Read a string
b) Display the string
c) Reverse the string
d) Copy the string into empty string
e) Concatenate two strings
Physical Education:
a) Prepare a chart about the specifications of any one sports field of your choice, which is in your course.
b) Prepare a study on soft tissue injuries/ bone injuries with regard to any one sport, which is in your course.
c) Prepare a chart on any 06 Yoga Asanas along with their importance/advantages.
d) Prepare a study on the important National Sports Awards.
e) Prepare a study on Postural Deformities - Kyphosis, Lordosis, Scoliosis, Knock-knees, Bow legs, Flat foot, Round Shoulders.
Hindi:
निम्िलिखित विशयों पर 300 षब्दों में निबन्ध लिखिए।
1- बच्चों में बढ़ता मोटापा। (30 लमिट)
2- राजिीनत में आचरण हीिता। (30 लमिट)
3- निम्िलिखित विशयो पर पत्र लिखिए।
ििभारत टाइम्स 7 बहादरु षाह जफ़र मार्ग, िई ददल्िी 110002 के प्रधाि संपादक को पत्र लिखिए, जजसमें
बढ़ती हुई, महँर्ाई के प्रनत चचन्ता व्यक्त की र्ई हो। (20 लमिट)
4- अपिे िर्र के विद्यत
ु प्रदाप संस्थाि के महाप्रबंधक को एक वषकायती पत्र लिखिए, जजसमें परीक्षा के ददिों
में बार-बार बबजिी चिे जािे के कारण उत्पन्ि असवु िधा का िणगि ककया र्या हो। (20 लमिट)
5- निम्ि विशयों पर िर्भर् 150 षब्दों में फीचर लिखिएक- तिाि कैसे दरू करें । (20 लमिट)
ि- मेरे षहर की पररिहि व्यिस्था (20 लमिट)
विषेश:- यह सभी कायग आप अपिी र्ह
ृ कायग की कापी में करें ।
Principal