M. M. Public Sr. Sec. School
Summer Holidays Homework
Session : 2014-15
Class – XII
English
1.
2.
3.
4.
5.
6.
Cut and paste :a. Five news paper Notices
b. Five reports
c. Five articles
On the left hand side of your note book and on the right hand side write and draw their graphical
representation including:a. Format
b. Key Words ( at least 10 from each)
Cut and paste:a. Advertisement
Taking ideas from the advertisement write an article on the topic “Effect of Advertisement on our day
today life”.
Read the newspaper daily and gather the information on the current affairs.
Paste at least five articles from each related to:a. Cyber Crime
b. Teenage Problems
c. Corruption
d. Election procedure and role of political parties in shaping the country
e. The Future of information Technology
Cut and Paste five articles from the news paper and make proper notes of the same including justified
heading and sub-heading of the article s pasted.
Prepare a power point presentation on – Step wise Effort Done by Douglas to be a perfect swimmer.
(Chapter- Deep Water)
Prepare the Suggested chapters for unit Test-II
Physics
1.
2.
3.
5.
Write experiment-1,2, 3, 4, 5, 6 in section A.
Write experiment 3, 7 (a), 7 (b) and 8 in section B in your Physics activity file.
Do all questions in Saraswati Physics & NCERT from chapter 1 to 10.
Prepare a suggested investigatory project including following value points.
 Certificate
 Observation
 Acknowledgement
 Result
 Index
 Error
 Aim
 Precautions
 Material Required
 Conclusion
 Theory
 Bibliography
 Procedure
Distribution of Project :Roll No. 1-3
Project 1
Roll No. 10-12
Project 6
Roll No. 4-6
Project 3
Roll No. 13-15
Project 7
Roll No. 7-9
Project 5
Roll No. 16-19
Project 9
Chemistry
(A)
Make a Project on following topicsIt should consist of certificate, acknowledgement, topic, introduction, experiment – apparatus required,
theory, procedure, result, precaution & bibliography.
Suggested ProjectStudy of common food adulterants in fat, oil, butter, sugar, turmeric powder, chilli
Roll No. 1, 4, 7
Powder & Pepper.
Study of quantity of casein present in different samples of milk.
Roll No. 2, 5, 8
Comparative study of the rate of fermentation of following materials : Wheat flour; gram
Roll No. 3, 6, 9
flour, potato juice , carrot juice &orange juice.(Roll no 3, 6, 9)
Roll No. 10, 13, 16, 19 Study of the acidity of different samples of tea leaves and reasons for the variation in their
taste.(Roll no 10,13 16,19)
Roll No. 11, 14, 17
Roll No. 12,15,18
(B)
Study of the dialysis of different Sewage water samples and identification of different ions
in resulting solution.(Roll no11, 14,17)
3 4: 5; 6:Preparation of soyabean milk & its comparison with natural milk.(12, 15, 18)
Read the newspaper and collect atleast 10 scientific information and paste in your scrap book.
Assignment
1.
What are the units of rate constant of a pseudo unimolecular reaction?
2.
Rate of reaction doubles when the temperature changes from 270C to 370C. Calculate the activation
energy of the reaction. (R=8.314JK-1mol-1)
3.
For a first order reaction, Show that time required for99% completion is twice the time required for the
completion of 90% of reaction.
4.
A reaction is first order in A and second order in B.
(i)
Write the differential rate reaction.
(ii)
How is the rate affected on increasing the concentration of B three times?
(iii) How is the rate affected when the concentration of both A & B are doubled?
5.
Give characteristics of lyophilic & lyophobic sols.
6.
Explain what is observed when a beam of light is passed through a colloidal sol.
7.
Boiling point of pure water at 750mm Hg is 99.63oC .How much Sucrose is to be added to 500g of water
such that it boils at 100oC (Kb=0.52 K Kg mol-1 for Water)
8.
Vapour Pressure of pure water at 298K is 23.8mm Hg.50g of Urea (NH2CONH2) is dissolved in 850g of
water. Calculate the vapor pressure of water for this solution and its relative lowering.
9.
(a)
What is meant by the term coordination no?
(b)
What is the coordination no of atoms?
(i)
In a cubic closed packed structure?
(ii)
In a body centered cubic structure?
10.
An element of atomic mass 98.5gmol-1 occurs in FCC structure. If its unit cell edge length is 500pm and
its density is 5.22gcm-3, what is the value of Avogadro’s Constant?
Maths
Topic : Matrix & Determinant
1.
Construct 2  2 matrix
find f(A) = ? where f(x) = x2 – 5x + 7.
2.
3.
find x.
4.
Use properties to prove that
5.
Use properties to prove that
6.
Using elementary row transformation find inverse.
(i)
7.
(ii)
Solve :-
Topic : Inverse Trigonometry
1.
Evaluate :(i)
(ii)
(iii)
(iv)
(v)
(vi)
Prove that :2.
3.
4.
5.
.
Solve
6.
7.
8.
1.
2.
Topic: Relation, Function, Binary operations
Show that the relation R on the set A={x z : 0 ≤ 12} given by R = { (a,b) : |a-b| is a multiple of 4} is
and equivalence relation. Find the set of all elements related to 1.
Prove that the relation R on N  N defined by (a, b) R (c, d)  a+d = b+c for all (a, b) (c, d) N  N is
3.
4.
5.
an equivalence relation.
Prove that the relation R on Z defined by (a, b)  R  a-b is divisible by 5 is an equivalence relation.
Show that the function f : R  R given by function f(x) = ax + b where a, b R, a ≠ 0 is a bijection.
Let f: N  N be defined by
, show that f is bijection.
, f : A  B, show bijection and find f -1
6.
f(x) =
7.
A = R – {3} and B = R – {1}
f(x) = x2 + 4 show that f -1 (x) =
8.
Consider f = R-1 [-5, x] given by f (x) = 9x2 + 6x – 5, show that f is invertible with f -1 (x) =
9.
On the set Z a * b = a + b – 5, Prove binary, associative commutative and find identity element as well
as inverse. a * b = a + b – ab, Prove binary, find identify elements and a, b R – {-1}. Prove it
invertible.
.
Topic : Continuity & Differentiability
1.
Examine the function f(t) =
2.
Show that the function f(x) = 2x - |x| is continuous at x=0.
3.
Find a, b, if function f(x) =
4.
Determine the value of a so that f(x) is continuous at x=0.
5.
Show that f(x) = |x| is not differentiable at x = 0.
6.
Show that the function f(x) =
7.
Discuss the differentiability f(x) = x |x| at x = 0.
is continuous at x = 1.
is not differentiate at x=2.
Differentiate the following w.r.t. x:
8.
9.
10.
11.
12.
, prove that
13.
, find
14.
15.
.
, prove that
Find
,
.
.
.
.
16.
17.
prove that
If
at
18.
19.
.
.
, prove that
, show that
.
.
Accountancy
Prepare project on any one of the following problem. (Problem 1, 2, 3)
1.
Mr. Rajesh Gupta had 1,000 shares of Jai Prakash industries Ltd. of Rs. 10 each. In March, 2008, he sold
his shares @ Rs. 980 each. With this amount, he decided to set up a manufacturing business of airconditioners on 1 April, 2008 under the name of M/S Best Quality Air-Conditioners. He decided that all
transactions should be made through bank and deposited the whole money in HDFC Bank. He
purchased a running factory of air-conditioners consisting of Factory Land and Building Rs. 4,00,000,
Plant and Machinery Rs. 3,50,000, Furniture Rs. 50,000, Stock Rs. 90,000 but agreed to pay Rs.
9,50,000 as purchase consideration. He later approached his banker for a loan to meet the working
capital requirement. Bank advanced loan amounting to Rs. 4,00,000 @ 10% p.a. His transactions for the
year ending 31st March, 2009 were as follows :
Rs.
Total Purchases (Rs. 4,10,000 in cash)
12,40,000
Total Sales (Rs. 5,25,000 in cash)
20,50,000
Wages
2,30,000
Carriage
20,500
Power and Lighting
15,500
Salary of Staff and Manager
1,25,000
Postage and Call
4,200
Printing and Stationery
3,800
Advertising
16,700
Debtors Paid
12,10,000
Insurance Premium
12,100
Conveyance
13,200
Paid to Creditors
6,50,000
Drawings during the year @ Rs. 5,000 p.m.
60,000
Additional Information :
(i)
Closing Stock Rs. 1,10,000
(ii)
Depreciate Land and Building by 5% and Plant and Machinery and Furniture by 10%.
(iii) Salary outstanding Rs. 8,000 and wages outstanding Rs. 15,000.
(iv)
Insurance premium prepaid Rs. 1,200.
You are required to include the following things in the project.
(1)
Journalise these transactions and post them into ledge accounts and prepare Trial Balance.
(2)
Prepare financial statements for the year 2008-09.
(3)
Comment on the profitability and short-term solvency of the firm when similar firms earn Gross
Profit @ 20% and Net Profit @ 10%.
st
2.
On 1 January, 2008, Mr. Bijender Malik decided to open a computer training centre in Chandigarh. He
purchased a commercial complex measuring 300 square feet carpet area at a cost of Rs. 3,50,000 and
decided to invest Rs. 2,50,000 as a further capital in the proposed business.
He approached Rajasthan Bank for loan which agreed to provide 80% loan of the cost of computers. He
bought 30 computers of HCL costing Rs. 25,000 each. He paid Rs. 1,50,000 and Rajasthan Bank
financed the remaining 80% amount of Rs. 6,00,000 @ 10% p.a. The loan was payable in 4 annual
instalment along with interest due.
The transactions during the year were :
3.
Rs.
Purchased Furniture
40,000
Fees received from students
5,90,000
Bought Computer Stationery
1,10,000
Sale of Computer Stationery
1,60,000
Wages Paid
90,000
Salaries Paid
1,25,000
Electricity Charges
47,500
Advertisement
22,000
Postage and Call
9,500
General Expenses
6,000
Insurance Premium
4,600
Bought Printer Machine
30,000
He withdrew Rs. 12,000 p.m. as drawing and repaid the annual instalment of bank loan along with
interest due on 31st December, 2008. Assume all transactions took place through Rajasthan Bank.
You required to :
(1)
Journalise these transactions after considering the following information :
(i)
Stock of computer stationery Rs. 19,500.
(ii)
Depreciate building by 5% and Computer and Furniture @ 10% p.a.
(iii)
Salary unpaid Rs. 9,000.
(iv)
Advertisement include unissued material worth Rs. 4,000.
(v)
Insurance Prepaid Rs.1,500.
(2)
Post them into ledger and prepare Trial Balance.
(3)
Prepare financial statements for the year ended 31st December, 2008.
(4)
Mr. Bijender Malik wishes to expand his business further so he approached his banker for loan.
What ratios should his banker consider before providing loan considering that similar firms earh
58% as Gross Profit and 23% as Net Profit?
Amit of Delhi won Rs. 25 lakhs after tax from K.B.C. II (Kaun Banega Crorepati) game show. He
bought a residential house for Rs. 10 lakhs and a car for Rs. 4 lakhs and kept Rs. 1 lakh as bank balance.
He prepared to start a business of cloth merchant on 1 January, 2004 with the rest of amount of game
show. He bought a shop for Rs. 3 lakh and got it finished for Rs. 2,50,000. From the following
particulars obtained from his books which do not confirm strictly to double entry principles, prepare his
Final Accounts for the year ended 31st December, 2004 :
Rs.
Sales (including cash sales Rs. 5 lakh)
20,40,000
Purchases (including cash Purchases Rs. 3.20 lakhs)
14,30,000
Drawings
2,50,000
Salaries
40,800
Bad Debts
3,000
Trade Expenses
12,000
Investments
5,00,000
Insurance
8,500
Discount Allowed
2,500
Discount Received
2,200
Carriage and Freight
1,11,500
On 31st December, his debtors were Rs. 1,30,500 and creditors were Rs. 1,22,600. Stock on that date
was Rs. 1,27,900. Interest on Investment Accrued Rs. 20,000.
Depreciate furniture by 10% and Building by 5%. Salary outstanding was Rs. 3,500, Insurance prepaid
was Rs. 1,500 and Create provision for doubtful debts on debtors Rs. 1,500.
You are required to find out :
(1) Cash received from debtors.
(2)
(3)
(4)
(5)
Cash paid to creditors.
Cash in hand
Prepare Trading, Profit and Loss Account and Balance Sheet on that date.
Comment upon profitability position, solvency position and efficiency position of the enterprise,
when industry standards were, G.P. Ratio 25%, N.P. Ratio 20%. Stock Trunover 8 times, Debtors
Turnover 10 times, Creditors Trunover 10 times, ROI 35%.
Business Studies
Prepare the projects on the following (atleast 30 pages) :Project-1 Principles of Management
The students are required to visit any one of the following:
(1) A departmental store
(2) An industrial unit
(3) A fast food outlet
They are required to observe the application of the general principles of management advocated by
Fayol.
Fayol’s Principles
1
Division of work
2
Unity of command
3
Unity of direction
4
Scalar chain
5
Esprit de corps
6
Fair remuneration to all
7
Order
8
Equity
9
Discipline
10
Subordination of individual interest to general interest
11
Initiative
12
Centralization and decentralization
13
Stability of tenure
OR
F.W. Taylor principle of management
1
Functional foremanship
2
Standardization and simplification of work
3
Method study
4
Motion study
5
Time study
6
Fatigue study
7
Differential piece rate system
Project-2 Marketing management
1 Toothpaste (Roll No 1 to 5)
2 Noodles (Roll No 6 to 10)
3 Shampoo (Roll No 11 to 15)
4 Bathing Soap (Roll No 16 to 20)
5 Washing detergent (Roll No 21 to 25)
6 Mobile (Roll No 26 to 30)
7 Jeans (Roll No 31 to 35)
Instructions for the project-2.
1 Find out 5 competitive brands that exits in the market.
2 What permission and licenses would be required to make the product?
3 What are your competitors Unique Selling Proposition.
4
5
6
7
8
9
10
11
12
Does your product have any range? Give details.
What is the name of your product?
Enlist its features
Draw the label of your product
Draw the logo of your product
Draft a tag line
How will your product be packed?
Which channel of distribution are you going to use? Give reasons for selection?
List 5 ways to promote your product
Economics
Assignment – 4
Topic –Elasticity of Demand
Very short answer type question (1 mark each)
1
Define price elasticity of demand.
2
Why is price elasticity of demand generally negative?
3
Give the formula for measuring price elasticity of demand according to percentage method.
4
Given the formula for measuring price elasticity of demand according to the graphic method.
5
How is price elasticity related to a vertical straight line demand curve?
6
How is price elasticity related to a horizontal straight line demand curve?
6
Demand for product X is perfectly inelastic. What will be the change in demand if price falls
from Rs 10 per unit to Rs 5 per unit?
7
When is the demand of a commodity said to be inelastic?
8
If price elasticity of demand for a product is equal to one, what will be the nature of its demand
curve?
9
A rise in the price of a good results in an increase in expenditure on it. Is its demand elastic or
Inelastic?
10
What is meant by highly elastic of demand?
11
How is price elasticity of demand affected by the nature of the commodity?
12
If two demand curve intersect, which one has the higher price elasticity?
13
What happen to total expenditure on a commodity when its price falls and its demand is price
elastic?
14
A perfect elastic price demand curve is parallel to the X-axis. Why or why not?
15
Which one of the following statement is in correct? (MCQ’s)
1. Numerical value of elasticity indicates large effect of a price change on the quantity demanded.
2. Elasticity of demand can vary only between -1 and +1.
3. The demand curve for all commodities which have unitary elastic demand will be rectangular
hyperbola.
4. Elasticity of demand establishes a quantitative relationship between quantity demanded of a
commodity and its price, while other factor remain constant.
16 A fall in the price of a commodity whose demand curve is a rectangular hyperbola causes total
expenditure on the commodity to;
a) Increase
b) Decrease
c) Remain unchanged
d) None of these.
17 What is meant by elasticity of demand? Explain any two factors that affect it.
18 State the various methods for measuring price elasticity of demand. Discuss any one.
19 Explain the percentage method of determining elasticity of demand with the help of an example.
20 Explain the relationship between price elasticity of demand and Total expenditure.
21 Explain, in brief, the following kinds of price elasticity of demand;
(i) Highly elastic demand
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
(ii) Less Elastic Demand
(iii) Unitary Elastic demand.
Discuss various factors that affect price elasticity of demand.
Explain the significance of elasticity of demand.
Define unitary elastic demand and draw a demand curve for it. What is the significance of a
unitary elastic demand curve?
Distinguish between perfectly elastic demand and perfectly inelastic demand. Draw diagram
also.
Explain, with the help of a diagram, the geometric method of measuring price elasticity of
demand.
Board examination question (2013-14)
When the price of a good falls Rs 10 to Rs 8 per unit, its demand rises from
3
20 units to 24 units. What can you say about price elasticity of demand of?
Good through the ‘expenditure approach’?
Or
A consumer buys 27 units of a good at a price of Rs 10 per unit. When the price falls to Rs 9 per
unit, the demand rises to 30 units. What can you say about price elasticity of demand of the good
through the ‘Expenditure method’?
Give the meaning of ‘inelastic demand’.
1
(2012-13)
How is price elasticity of demand affected by; 1. Number of substitute available for the good,
2. Nature of the good.
6
When is the demand for a good said to be inelastic?
1
The price elasticity of demand for a good is -0.4. If its price increase by 5 percentage, by what
percentage will its demand fall? Calculate.
4
Or
Explain any two factor that affect the price elasticity of demand.
Assignment – 5
Topic -Production function
Are the following statements true or false? Give reasons.
When there are diminishing returns to a factor, total product always decreases.
Increase in TP always indicates that there are increasing returns to factors.
When marginal product falls, average product will also fall.
The distinction between short and long run is based on a fixed time period.
Production function establishes a relation between inputs and outputs, which is technical and not
economical in nature.
Both variable and fixed factors exist in case of zero output.
MP cuts AP from its top.
MP always rises when AP is increasing.
Under diminishing returns to a factor, total product continues to increases till marginal product reaches
zero.
Very Short answer type questions
What is meant by production?
Give the meaning of production function.
In which period, some factors of production are fixed and others variable?
Can Average product be zero or negative?
Can Marginal product be zero or negative?
As the variable input is increased by one unit, total output falls. What can you say about the marginal
productivity of variable input?
Name the law expressing the relationship between the quantities of a variable factor and the quantities of
output.
In which phase of Law of variable proportions, a rational firm aims to operate?
18
19
20
21
22
23
24
25
26
27
28
29
30
What is the general shape of the TP, AP and MP curve?
Can AP rise when MP starts declining?
Give meaning of ‘Return to a factor’.
What is the reaction of AP, when
a) MP is more than AP
b) MP is less than AP
c) MP is equal to AP
What is the behavior of TP, when;
a) MP rises b) MP falls, but remains positive
c) MP is zero
d) MP becomes negative
Short answer type questions
Distinguish between; 1. Variable factors and Fixed factors 2. Short run and long run
Define the following terms 1. Total product
2. Marginal product 3. Average product.
What type of changes take place in Total product and marginal when there are;
a) Increasing returns to a factor?
b) Diminishing returns to a factor?
Why do these changes take place?
Long Answer Type Questions
Explain the Law of variable proportion with the help of total and marginal physical product curves, Give
reasons also.
Explain the law of diminishing returns with the help of a hypothetical schedule and diagram
Discuss the relationship between Marginal product and average product.
Board examination question answer (2013-14)
Define marginal product
(1)
Giving reasons, explain the’ Law of Variable Proportion’.
(4)
Chapter 1, 2 and 3
1
Test Paper-1
MM-65
Choose the right option.
(10)
1)
Scarcity refers to limitation of ------------ in relation to _________ for a commodity.
a) Demand, sale
b) Demand, supply
c) Supply, demand
d) None of these
2)
Of these is not a property of indifference curve?
a) Indifference curve slopes down wards
b) Indifference curve is concave to the origin
c) Two indifference curve cannot intersect each other
d) Higher indifference curve represents higher level of satisfaction.
3)
A point outside the PPF indicates:
a) Fuller utilization of resources
b) Underutilization of resources
c) Unattainable combination
d) None of these
4)
Indifference curve are convex to the origin because of:
a) Increasing MRS
b) Diminishing MRS
c) Law of diminishing marginal utility
d) Law of equi-marginal utility
5)
Opportunity cost is the:
a) Number of units sacrificed
b) Number of units gained
c) Cost of next best alternative foregone
d) None of these
6)
Which economic problem involves selection of category of people who will ultimately consume
2
3
4
5
6
7
8
9
10
11
12
13
14
15
the goods?
a) How to produce
b) For whom to produce
c) What to produce
d) None of these
7)
The necessary condition to attain equilibrium in case of two commodities is:
a) MUx/Px=MUy/Py
b) MRSxy=Px/Py
c) MUx=Px
d) None of these.
8)
Which part of economic theory aims to determine income and employment level of the
economy?
a) Microeconomics
b) Macroeconomics
c) Neither (a) and (b)
d) Both (a) and (b)
9) Total Utility is __________ at the point of satiety:
a) Minimum
b) Maximum
c) Zero
d) None of these
10)___________measures the slope of indifference curve.
a) Budget line
b) Marginal rate of substitution
c) Marginal rate of Transformation
d) None of these
The government has started promoting foreign capital. What is its economic value in the context of
PPF?
(1)
Define indifference curve.
(1)
Define budget line. Why it is downward sloping?
(2)
What are monotonic preferences? Explain with an example.
(2)
Explain the meaning of opportunity cost with the help of production possibility schedule.
(3)
Discuss the various reasons for existence of economic problem.
(3)
Explain the central problem of (any two)
(4)
1) How to produce
2) What to produce
3) For whom to produce
Explain the three properties of indifference curve.
(3)
Why is Production Possibilities Curve concave? Explain
(3)
Explain Law of Equi marginal utility with the help of an example.
(4)
Distinguish between microeconomics and macroeconomics.
(4)
A consumer consumes only two goods X and Y and is in equilibrium .Show that when the price of
goods X rises, the consumer buys less of good X . Use utility analysis.
(4)
Or
Give the price of a goods, how will a consumer decide as to how much quantity of that good to buy? Use
utility analysis.
Explain why is an indifference curve a) downward sloping and b) convex.
(6)
Or
Explain the concept of’ Marginal Rate of substitution ‘with the help of a numerical example. Also
explain its behavior along an indifference curve.
Discuss the concept of production possibility curve through a schedule and diagram.
(6)
(Write all the assumptions for PPF)
16
17
18
Distinguish between ‘increase in demand’ and ‘increase in quantity demanded’ of a commodity. (3)
Distinguish between ‘expansion of demand’ and ‘increase in demanded’ of a commodity.
(3)
Derive the Law of demand from the single commodity equilibrium condition
Marginal Utility =Price.
(3)
1.
2.
Prepare a PPT on atleast 5 yogas of your choice. (Minimum 10 slides)
Prepare a file report of any one game of your choice including following value points:-.
 Name of the game
 Fundamental Skill
 Objective or skill gained
 Field Measurement
 Match or tournament
 Awards of related game
 Sports Personality
Physical Education
Note :-
(i)
(ii)
(iii)
Prepare the suggested chapters for Unit Test-II.
Do given assignments in your registers.
Prepare file report in A4 Size Sheet in suitable format.