Home Assignment for Summer Vacation, 2014
Class XII
ENGLISH
Q1.(a) Read at least five short reports in any English newspaper. Cut and paste them
on your note-book. On the basis of your reading of these reports, make notes on them
in points only, using headings and sub-headings. Use recognizable abbreviations
wherever necessary.
(b) Make a summary of these passages in not more than 80 words and also suggest a
suitable title.
Q2. You are running a real estate agency in South Delhi. Write an advertisement for
Saturday “Prime Estate” column of The Times of India, New Delhi, giving details of the
flats/ bungalows available for rent.
Q3. Water is very precious. Some scientists even go to the extent that the third world
war may be fought on the issue of water. Keeping in view the need for saving each drop
of water, write an article in 150-200 words. You are Natasha/Nitesh, a resident of New
Delhi.
Q4. You are Veena Chopra of Siddharth Enclave, New Delhi. You see the deplorable
conditions of Govt. hospitals in Delhi. Write a letter to the Health Minister, Delhi
complaining to him about the lack of facilities and mal-functioning of the Government
hospitals in Delhi.
Q5. As Head of Discipline Committee of Saini Public School, Rewari draft a notice in not
more than 50 words warning the students against smoking and writing abusive
language on urinal walls. Also mention the disciplinary action taken against such
students found in doing so.
Q6. Write a letter in not more than 200 words to the Editor of a daily commenting on the
increasing display of violence and sex in Indian films.
Q7. Write an article in 200 words on ‘Corruption in Public Life’.
Q8. You are the President of your school Drama Club. Your club is organizing a play
‘Three Idiots’ to help the victims of earthquake. Design a poster informing the students
about this play. Invent necessary details.
Q9.You are Satish/ Sonali, the librarian of the school library. You have been asked to
place an order for children’s story books for the age group 10 – 14. Write a letter to M.S.
Book Depot, Ramnagar, Meerut placing an order for the books. Invent the necessary
details.
Q10. You are Vimasl/Vimla. As a representative of your resident welfare association,
you have attended a workshop on ‘Promoting Health and Hygiene’. Write a report in
about 125 words for publication in your association’s newsletter.
कक्षा-बारहव ीं Hindi
XXXXXXXXXXXXXXX
१- निबंध:
क)साहित्य समाज का दर्पण िै
ख)इक्वीसवीं सदी का भारत
ग)ववश्व में बढ़ता आतंकवाद
घ)विय कवव/लेखक
ड.)आधुनिक शिक्षा र्द्धनत
२-सत्र २०१३-१४ का बोडप िश्ि र्त्र का क ,ख भाग र्ूरा करिा िै |
३-जिसंचार माध्यम के ५० (छोटे िश्ि )शलखिे िैं |
४-आलेख:
क) िहदयों की स्वच्छता िमारा िैनतक कर्त्पव्य िै |
ख ) युवा र्ीढ़ी में घटते संस्कार
५-फीचर:
क)एकल र्ररवारों में बुजुगों की स्स्िनत
ख) बाल शभखारी
Mathematics Holidays Homework—2014-15
1. Let R be the relation in the set N given by
R = (a, b)| a = b – 2 , b > 6} .Whether the relation is reflexive or not ?justify your answer.
2.Check whether the relation R is reflexive, symmetric and transitive.
R = { (x , y): x – 3y = 0} on A ={1, 2, 3……….13, 14}.
3. Let N be the set of all natural numbers & R be the relation on N × N defined by
R= { (a , b) , (c ,d): if a + d = b + c}. Show that R is an equivalence relation.
4. Let A=R-{3} & B=R-{1}. Consider the function
𝑥−2
f:A→B defined by f(x)=(𝑥−3) .show that f is one-one & onto, hence find 𝑓 −1 .
5. If f: 𝑅 → 𝑅 be defined as f(x)= 10x +7. Find the function g:𝑅 → 𝑅. Such that
gof(x)=fog(x)=𝐼𝑅 .
6. Prove that:
cos 𝑥
𝜋
𝑥
−𝜋 𝜋
tan−1 (1+sin 𝑥) = 2 − 2 , 𝑥𝜖 ( 2 , 2 ).
√1+𝑥−√1−𝑥
7. Prove that :tan−1 (
√1+𝑥+√1−𝑥
𝜋
1
) = 2 − 2 cos −1 𝑥.
8. Using matrices, Solve the
Following system of equations:
A.𝒙 + 𝟐𝒚 − 𝟑𝒛
=𝟒
𝟐𝒙 + 𝟑𝒚 + 𝟐𝒛 = 𝟐
𝟑𝒙 − 𝟑𝒚 − 𝟒𝒛 = 𝟏𝟏
B.
𝟒𝒙 + 𝟑𝒚 + 𝟐𝒛 = 𝟔𝟎
𝒙 + 𝟐𝒚 + 𝟑𝒛 = 𝟒𝟓
𝟔𝒙 + 𝟐𝒚 + 𝟑𝒛 = 𝟕𝟎
C.
𝟑𝒙 − 𝟐𝒚 + 𝟑𝒛 = 𝟖
𝟐𝒙 + 𝒚 − 𝒛 = 𝟏
𝟒𝒙 − 𝟑𝒚 + 𝟐𝒛 = 𝟒
9. Using properties determinants, solve the following for x:
𝑥 − 2 2𝑥 − 3
|𝑥 − 4 2𝑥 − 9
𝑥 − 8 2𝑥 − 27
3𝑥 − 4
3𝑥 − 16| = 0
3𝑥 − 64
10. Using matrix method, sole the following system of equations:
2 3 10
+ +
=4
𝑥 𝑦
𝑧
4 6 5
− + =1
𝑥 𝑦 𝑧
6 9 20
+ −
=2
𝑥 𝑦
𝑧
Where
𝑥, 𝑦, 𝑧 ≠ 0.
11.Find the relationship between 'a' and 'b' so that the function 'f' defined by:
𝑓(𝑥) = {
𝑎𝑥 + 1 𝑖𝑓 𝑥 ≤ 3
𝑖𝑠 𝑐𝑜𝑛𝑡𝑖𝑛𝑢𝑜𝑢𝑠 𝑎𝑡 𝑥 = 3.
𝑏𝑥 + 3 𝑖𝑓 𝑥 > 3
12. Find value of x
sin−1(1 − 𝑥) − 2 sin−1 𝑥 =
13. Find value:
𝑥
𝜋
2
𝑥−𝑦
tan−1 (𝑦) − tan−1 𝑥+𝑦
14.
15. Using properties of determinants, solve the following for x:
16. Using properties of determinants, solve the following for x:
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
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ACCOUNTANCY
CHAPTER – I
Accounting for partnership firms – Fundamentals
LEARNING OBJECTIVES:
After studying this chapter the student will be confident to:
Understand and explain the meaning of partnership
Understand the characteristics of Partnership
Explain the meaning and contents of partnership deed.
Apply their provisions of Partnership Act, 1932 in the absence of partnership deed.
Prepare partners‘ Fixed and fluctuating capital Accounts.
Calculate interest on Capital and Drawings.
Distribute profit among partners and prepare Profit and Loss Appropriation A/c.
Make the accounting treatment of past adjustment.
SALIENT POINTS:
Partnership deed: It is a document which contains the terms and conditions of
Partnership agreement either oral or written.
Profit and Loss Appropriation Account : After the preparation of Profit and Loss
account, entries pertaining to Interest on Capital, Drawings , Salaries among the
partners are shown separately in a newly opened Profit and Loss Appropriation
Account.
Rules applicable in the absence of Partnership Deed :
a) Profit sharing ratio will be equal
b) No Interest on Capital and Drawings
c) No Remuneration or Salary to the partners.
d) Interest on Loan advanced by the partner @6%p.a.
Fixed and Fluctuating Capital Accounts :
When the Capitals are fixed, the Current account of the partners will be
maintained.
8
1 and 3 Mark Questions
Q1 Define partnership.
Q.2 What do you understand by 'partners', 'firm' and 'firms' name?
Q.3 Write any four main features of partnership.
Q.4 What is the minimum and maximum number of partners in all partnership?
Q.5 What is the status of partnership from an accounting viewpoint?
Q.6 What is meant by partnership deed?
Q.7 State any four contents of a partnership deed.
Q.8 In the absence of a partnership deed, how are mutual relations of partners governed?
Q.9 Give any two reason in favour of having a partnership deed.
Q.10 State the provision of 'Indian partnership Act 1932‘ relating to sharing of profits in
Q.11 Why is it important to have a partnership deed in writing?
Q.12 What do you understand by fixed capital of partners?
Q.13 What do you understand by fluctuating capital of partners?
Q.14 Give two circumstances in which the fixed capital of partners may change.
Q.15 List the items that may appear on the debit side and credit side of a partner's fluctuating
capital account.
Q.16 How will you show the following in case the capitals are?
i) Fixed and ii) Fluctuating
. a) Additional capital introduced
b) Drawings
c) Withdrawal of capital
d) Interest on capital and
e) Interest on loan by partners?
Q.17 If the partners capital accounts are fixed, where will you record the following items :
i) Salary to partners
ii) Drawing by a partners
iii) Interest on capital and
iv) Share of profit earned by a partner?
Q.18 How would you calculate interest on drawings of equal amounts drawn on the Last day
of every month?
Q.19 How would you calculate interest on drawing of equal amounts drawn on the last day
of every month?
Q.20 How would you calculate interest on drawing of equal amount drawn in the middle of
every month?
Q.21 Ramesh, a partner in the firm has advanced a loan of a Rs. 1,00,000 to the firm and has
demanded on interest @ 9% per annum. The partnership deed is silent on the matter.
How will you deal with it?
22 The partnership deed provides that Anjali, the partner will get Rs. 10,000 per month as
salary. But, the remaining partners object to it. How will this matter be resolved?
Q.23 Distinction between Profit and loss and profit and loss appropriation account:
Ans.
Q.24. State the Average period to be taken for calculating interest on drawing in different cases if
amount is withdrawn on regular interval.
Profit & Loss A/c Profit & Loss Appropriation A/c
i) Profit and Loss A/c is prepared to
ascertain net profit or net loss of
the business for an accounting
year.
i) In case of partnership firms, profit
and loss appropriation A/c is
prepared to appropriate /
distribute the profit of the year
among partners.
ii) It is prepared by all the business
firms.
ii) Only partnership firms and
companies prepare profit and loss
appropriation A/c
13
PROBLEMS BASED ON FUNDAMENTALS
Q. 1 A, B, and C were partners in a firm having no partnership agreement. A, B and C
contributed Rs.2, 00,000, Rs.3, 00,000 and 1, 00,000 respectively. A and B desire that the
profits should be divided in the ratio of capital contribution. C does not agree to this. How will
the dispute be settled?
Q2 A and B are partners sharing profits in the ratio of 3: 2 with capitals of Rs. 5, 00,000 and
Rs. 3, 00,000 respectively. Interest on capital is agreed @ 6% p.a. B is to be allowed an
annual salary of Rs. 25000. During 2006, the profits of the year prior to calculation of
interest on capital but after charging B's salary amounted to Rs. 1,25,000. A provision of
5% of the profits is to be made in respect of Manager's commission.
Prepare an account showing the allocation of profits and partners' capital accounts.
Q.3 X and Y are partners sharing profits and losses in the ratio of 3: 2 with capitals of Rs. 50,000
and Rs. 30,000 respectively. Each partner is entitled to 6% interest on his capital. X is
entitled to a salary of Rs. 800 per month together with a commission of 10% of net 'Profit
remaining after deducting interest on capitals and salary but before charging any
commission. Y is entitled to a salary of Rs. 600 per month together I. with-a commission of
10% of Net profit remaining after deducting interest on capitals and salary and after
charging all commissions. The profits for the year prior to calculation of interest on capital
but after charging salary of partners amounted to Rs. 40,000. Prepare partners' Capital
Accounts:(i) When capitals are fixed, and
(ii) When capitals are. Fluctuating.
Note: (1) Calculation of interest on Capital: Interest for 3 months i.e. from 1st April to
30th June, 2004
Q 4 Give the answer to the following:
(1) P and Q are partners sharing profits and losses in the ratio of 3:2. On 1st April 2009 their
capital balances were Rs.50, 000 and 40,000 respectively. On 1st July 2009 P brought
Rs.10, 000 as his additional capital whereas Q brought Rs.20, 000 as additional capital on
1st October 2009. Interest on capital was provided @ 5% p.a. Calculate the interest on
capital of P and Q on 31st March 2010.
(2) A and B are partners sharing profits and losses in the ratio of 2:1. A withdraws Rs.1500 at
the beginning of each month and B withdrew Rs. 2000 at the end of each month for 12
months. Interest on drawings was charged @ 6% p.a. Calculate the interest on drawings
of A and B for the year ended 31st December 2009.
Q.5 A, B and C are partners in a firm sharing profits and losses in the ratio of 2:3:5. Their
fixed capitals were 15, 00,000, Rs.30, 00,000 and Rs.6, 00,000 respectively. For the year 2009
interest on capital was credited to them @ 12% instead of 10%. Pass the necessary adjustment
entry.
Q.6 From the following balance sheet of X and Y, calculate interest on capitals @ 10% p.a.
payable to X and Y for the year ended 31st December, 2008.
Liabilities Amount Assets Amount
X's Capital 50,000 Sundry Assets 1, 00,000
Y's capital 40,000 Drawings X 10,000
P & L appropriation A/c (1998) 20,000
1,10,000 1,10,000
During the year 2008, X's drawings were Rs. 10,000 and Y's Drawing were Rs. 3,000.
Profit during the year, 2008 was Rs.30, 000.
Q.7 A, B and C entered into partnership on 1st April, 2008 to share profits & losses in the ratio
of 4:3:3. A, however, personally guaranteed that C's share of profit after charging interest
on Capital @ 5% p.a. would not be less than Rs. 40,000 in any year. The Capital
contributions were:
A, Rs. 3, 00,000; B, Rs. 2, 00,000 and C, Rs. 1, 50,000.
The profit for the year ended on 31st March, '2008 amounted to Rs. 1, 60,000. Show the
Profit & Loss Appropriation Account. .
Q 8 A, and C are partners with fixed capitals of Rs. 2,00,000, Rs. 1,50,000 and Rs.
1,00,000 respectively. The balance of current accounts on 1st January, 2004 were A Rs.
10,000 (Cr.); B Rs. 4,000 (Cr.) and C Rs. 3,000 (Dr.). A gave a loan to the firm of Rs.
25,000 on 1st July, 2004. The Partnership deed provided for the following:(i) Interest on Capital at 6%.
(ii) Interest on drawings at 9%. Each partner drew Rs. 12,000 on 1st July, 2004.
(iii) Rs. 25,000 is to be transferred in a Reserve Account.
(iv) Profit sharing ratio is 5:3: 2 up to Rs. 80,000 and above Rs. 80,000 equally. Net
Profit of the firm before above adjustments was Rs. 1,98,360.
From the above information prepare Profit and Loss Appropriation Account, Capital and
Current Accounts of the partners.
Q.9 Ram and Shyam started a partnership business on 1st January, 2007. Their capital
contributions were Rs. 2,00,000 and Rs. 10,0000 respectively. The partnership deed
provided:
i. Interest on capitals @10% p.a.
ii. Ram, to get a salary of Rs. 2,000 p.m. and Shyam Rs. 3,000 p.m.
iii. Profits are to be shared in the ratio of 3:2.
The profits for the year ended 31st December, 2007 before making above appropriations
were Rs. 2,16,000. Interest on Drawings amounted to Rs. 2,200 for Ram and Rs. 2,500 for
Shyam. Prepare Profit and Loss Appropriation Account.
Q.10 P and Q are partners with capitals of Rs. 6,00,000 and Rs. 4,00,000 respectively. The profit
and Loss Account of the firm showed a net Profit of Rs. 4, 26,800 for the year. Prepare Profit
and Loss account after taking the following into consideration:(i) Interest on P's Loan of Rs. 2,00,000 to the firm
(ii) Interest on 'capital to be allowed @ 6% p.a.
(iii) Interest on Drawings @ 8% p.a. Drawings were; P Rs 80,000 and Q Rs.
1000,000.
(iv) Q is to be allowed a commission on sales @ 3%. Sales for the year was Rs.
1000000
(v) 10% of the divisible profits is to be kept in a Reserve Account.
1. “In order to be successful, an organization must its goals according to the needs of
environment”. Which characteristic of management is highlighted in this
statement?
[1]
2. Name the technique given by Taylor which is the strongest motivator for a worker
to reach the standard performance.
[1]
3. Define Business Environment. [1]
4. Name the type of plan which is also a control device from which deviations can be
taken care of.
[1]
5. What is workload analysis? [1]
6. Give two examples of non-financial incentives. [1]
7. What is the last step in the process of controlling? [1]
8. State the twin objectives of financial planning. [1]
9. Give two examples of shopping products. [1]
10. Name the marketing philosophy which suggests that products that are
inexpensive and easily available will sell.
[1]
11. Ruby is the marketing manager of the northern division of a large corporation
house. At what level of management does the work in the organization? Give two
functions performed by that level of management.
[3]
12. Explain objectives and policies as types of plan. Give one example of each. [3]
13. Give any three reasons why planning is important. [3]
14. Enumerate three advantages of training to an organization.
BUSINESS STUDIES
1. “In order to be successful, an organization must its goals according to the needs of
environment”. Which characteristic of management is highlighted in this
statement?
[1]
2. Name the technique given by Taylor which is the strongest motivator for a worker
to reach the standard performance.
[1]
3. Define Business Environment. [1]
4. Name the type of plan which is also a control device from which deviations can be
taken care of.
[1]
5. What is workload analysis? [1]
6. Give two examples of non-financial incentives. [1]
7. What is the last step in the process of controlling? [1]
8. State the twin objectives of financial planning. [1]
9. Give two examples of shopping products. [1]
10. Name the marketing philosophy which suggests that products that are
inexpensive and easily available will sell.
[1]
11. Ruby is the marketing manager of the northern division of a large corporation
house. At what level of management does the work in the organization? Give two
functions performed by that level of management.
[3]
12. Explain objectives and policies as types of plan. Give one example of each. [3]
13. Give any three reasons why planning is important. [3]
14. Enumerate three advantages of training to an organization.
1. “In order to be successful, an organization must its goals according to the needs of
environment”. Which characteristic of management is highlighted in this
statement?
[1]
2. Name the technique given by Taylor which is the strongest motivator for a worker
to reach the standard performance.
[1]
3. Define Business Environment. [1]
4. Name the type of plan which is also a control device from which deviations can be
taken care of.
[1]
5. What is workload analysis? [1]
6. Give two examples of non-financial incentives. [1]
7. What is the last step in the process of controlling? [1]
8. State the twin objectives of financial planning. [1]
9. Give two examples of shopping products. [1]
10. Name the marketing philosophy which suggests that products that are
inexpensive and easily available will sell.
[1]
11. Ruby is the marketing manager of the northern division of a large corporation
house. At what level of management does the work in the organization? Give two
functions performed by that level of management.
[3]
12. Explain objectives and policies as types of plan. Give one example of each. [3]
13. Give any three reasons why planning is important. [3]
14. Enumerate three advantages of training to an organization.
Political science
1- Make a project on scrapbook on Indian political parties with their symbols .collect proper
information about their ideologies.
HISTORY – 12TH D
1. What are the main features of Maurya Empire?
2. Describe the main features of early civilizations of India.
3. Name two sacrifices performed by the kings during the
Vedic time.
4. Explain any two problems that were faced by Historians in
writing history of Ancient time.
5. State the factors that helped Magadha emerge as the most
powerful Mahajanapada.
6. Describe the Varna system according to the Brahamanical
texts.
7. Write the main teaching of Buddha
“The Begums of Bhopal played a significant role in
preserving the remains of Sanchi stupa”
in 300 words
8. What kinds of duties were performed by Chandala
according to Manu scripts?
9. Describe the marriages (various types) of Vedic period and
Mahabharata period.
10.
Describe the organization and the role of Buddhist
Sanghas.
11.
Describe the main features of Puranic Hinduism.
Economics
Theory Questions
Q.1. Write the degrees of elasticity of supply. Explain it with the help of
demand schedule and diagram.
Q.2. Write percentage method of Elasticity of supply?
Q.3. What are the causes of increase in the supply and decrease in supply?
Explain it in detail.
Q.4. Differentiate between Contraction of supply and decrease of supply.
Q.5. Differentiate between extension of demand or increase in demand.
Q.6. Explain the actors of elasticity of demand? Explain any four.
Numericals ( Elasticity of demand )
Q.1 The market demand for a good at Rs.4 unit is 100 units. The price
rises and as a result its market demand falls to 75 units. Find out the
new price if the price elasticity of demand of that good is (-) 1 ?
Q.2. The market demand for a good at Rs. 5 per unit is 100 units. When
price changes market demand rises to 150 units. Find out the new price if
price elasticity of demand is (-) 2.5?
Q.3. The market demand for a good at a price of Rs. 10 per unit is 100
units. When its price changes its market demand falls to 50 units. Find
out the new price if the price elasticity of demand is (-) 2?
Q.4. A consumer buys 160 units of a good at a price of Rs. 8 per unit
Price falls to Rs.6 per unit. How much quantity will consumer buy at a
new price if price elasticity of demand is (-) 1?
Q.5. A consumer buys 200 units of a good at a price of Rs. 5 per unit.
When the price changes he buys only 100 units. If price of elasticity of
demand is (-) 1, find the changed price.
Q.6. When the price of a commodity is Rs. 20 per unit, its quantity
demanded is 800 units. When its price rises by Rs. 5 per unit, its
quantity demanded falls by 20%. Calculate its price elasticity of
demand. Is its demand elastic? Give reasons for your answer.
Q.7. When the price falls from Rs. 20 per unit to Rs. 16 per units its
quantity demanded rises from 1000 units to 1160 units. Calculate
elasticity of demand. Is it inelastic? Give reason.
Q.8. Price elasticity of demand is (-) 2. 40units of this good are bought at
a price of Rs. 11 per unit. Calculate.
Q.9. The quantity demanded of a commodity at its price of Rs. 8 per unit
is 600 units. Its price falls by Rs. 25% and quantity demanded rises by
120 units. Calculate its price elasticity of demand.is its demand elastic?
Give reason for your answer.
Q.10. A consumer buys 80 units of a good at aprice of Rs. 5 unit. Suppose
price elasticity of a demand is (-) 2. At what price will he buy 64 units?
Q.11. Price of a good rises from Rs. 10 unit. As a result, quantity
demanded of that good that falls by 10%. Calculate its price elasticity of
demand.
Q.12. Price of a good falls Rs. 6 to Rs. 3 per unit. As a result, its demand
rises from 30 units to 60 units. Find out price elasticity of demand by
total expenditure method.
Q.13. A consumer buys 50 units of a good at a price of Rs. 10 unit. When
price falls to Rs. 5 per unit he buys 100 units. Find out the price elasticity
of demand by the total expenditure method.
Q.14. a consumer buys 40 units of a good at a price of Rs. 3 per unit.
When price rises to Rs. 4 per unit he buys 30 units. Calculate price
elasticity of demand by the total expenditure method.
Q.15. A consumer buys 70 units of a good at a price of Rs. 7 per unit.
When price falls to Rs. 6 per unit he buys 90 units. Use of total
expenditure method to find whether the demand for a good is elastic or
inelastic.
Q.16. when the price of the good falls by 10%, its quantity demanded rises
from 40 units. Calculate price elasticity of the demand by the percentage
method.
Q.17. The price of the commodity rises from Rs. 10 to Rs. 12 and
consequently the demand falls from 100 units to the 80 units. Determine
the price elasticity of the demand for that commodity.
Q.18. Determine price elasticity of demand by the total expenditure
method.
Price
11
10
Total Expenditure
121
50
Q.19. Determine price elasticity of demand using percentage method.
Given are:
Price
20
15
Total Expenditure
200
300
Q.20. The price of the commodity rises from Rs. 4 to Rs. 20 per unit.
Consequently, its demand falls by 40 units and becomes 80 units.
Determine the elasticity of the demand.
Q.21. Price of good falls from Rs. 8 to Rs. 6. As a result, demand falls by
4%. Find out the price elasticity of demand. Is this demand elastic or
inelastic?
Q.22. Price of a good rises by 10%. As a result demand falls by 4%. Find
out price elasticity of demand. Is the demand elastic or inelastic?
Q.23. Price of the demand of a good is (-) 3. If the price rises from Rs. 10
per units to Rs.12 per unit, what is the percentage change in the demand?
Q.24. A consumer buys a certain quantity of a good at a price of Rs. 10
per unit. When price falls to Rs. 8 per unit, she buys 40% more quantity.
Calculate price elasticity of a demand.
Q.25. When the price of the commodity rises from Rs. 10 per unit to Rs. 11
per unit, its quantity demanded falls by 15%. Calculate its elasticity of
demand.
Q.26. Calculate the price elasticity of demand for a commodity when its
price increases by 25% and quantity demanded falls from 150 units to
120 units.
Q.27. The quantity demanded on a commodity rises from 800 units to
850 units, when the price of the commodity falls from Rs. 20 per unit to
Rs. 19 per unit. Calculate its elasticity of demand.
Q.28. A 5 percent rise in price of a good leads to 5% fall in demand. A
consumer buys 100 units of good when price is Rs. 5 per unit. At what
price will the consumer buys 120 units? Calculate.
Q.29. From the following data calculate price elasticity of demand:
Price
9
9
Total expenditure
100
150
Q.30. A consumer buys 10 units of a good at a price of Rs. 9 per unit. At
price of Rs. 10 per unit he buys 9 units. What is price elasticity of
demand? Use expenditure approach. Comment on the likely shape of
demand curve on the basis of this measure of elasticity.
Numericals ( Elasticity of Supply )
Q.1. A 15% change in the price of the commodity results in a rise in its
supply from 600 units to 735 units. Calculate its elasticity of supply.
Q.2. Commodities X & 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 commodity Y if its price falls by
8 %.
Q.3.The price elasticity of supply of a commodity X & Y are equal. The
price of X falls from Rs. 10 to Rs. 8 per unit and its quantity supplied fall
by 16%. The price of Y rises by 10 %. Calculate the percentage increase in
its supply.
Q.4. A producer supplies 200 units of a good at Rs. 10 per unit. Price
elasticity of supply is 2. How many units will the producer supply at a
price of Rs. 11?
Q.5. A firm supplies 1000 nits of a commodity at a price of Rs. 5 per unit.
Price elasticity of a supply is 1. At what price will the firm supply 800
units? Calculate.
Q.6. A firm supplies 500 units of a good at a given price. Price elasticity
of a supply is 4. When price rises by Re. 1 the firm supplies 1000 units.
What is the price given? Calculate.
Q.7. A firm supplies a certain quantity of a good at a price of Rs. 10 per
unit. When the price changes to Rs. 9 per unit, the firm supplies 10 unit
less. Price elasticity of a supply is 1. What is the quantity supplied before
change? Calculate.
Q.8. A firm supplies 200 units of a good at a price of Rs. 5 per unit. When
the price changes it supplies 100 units less. Price elasticity of supply is
2.5. Calculate price affect change.
Q.9. A firm supplies 100 units of a good at a given price. When price falls
by one rupee per unit, the firm supplies 70 units. Price elasticity of supply
is 3. Calculate the given price.
Q.10. A price of Rs. 5 per unit of commodity A, total revenue is Rs. 800.
When its price rises by 20%, total revenue increases by Rs. 400. Calculate
its price elasticity of supply.
Q.11. Total revenue is Rs. 400 when the price of the commodity is Rs. 2 per
unit. When price rises to Rs. 3 per unit, the quantity supplied is 300
units. Calculate the price elasticity of supply.
Q.12. When the price of a commodity rises by 10%, it supply rises by 40
units. Its elasticity of supply is 1. Calculate its supply at the original
price.
Q.13. The price of the commodity falls by 15% and its supply falls from
200 units to 155 units. Calculate its elasticity of supply.
Q.14.Price elasticity of supply of a commodity is 1. Its price rises from Rs.
20 to Rs. 24 per unit and its supply rises by 300 units. Calculate its
supply at an original price of Rs.20 per unit.
Q.15. A piece of Rs. 10 unit, the supply of the commodity is 300 units. Its
elasticity of supply is 1.5. Its price increases by 20%. Calculate its supply
at the increased price.
Q.16. When the price of a good rises from Rs. 20 per unit to Rs. 30 per
unit, the revenue of the firm producing this good rises from Rs. 100 to
Rs.300. calculate the price elasticity of supply.
Q.17.A firm’s revenue rises fromRs. 400 to Rs. 500 when the price of its
product rises from Rs. 20 per unit to Rs. 25 per unit. Calculate the price
elasticity of supply.
Q.18.The price elasticity of supply of a good is 0.8. Its price rises by 50%.
Calculate the percentage increase and the supply.
Q.19. A firm supplies 10 units of a good at a price of Rs. 5 per unit. Price
elasticity of a supply is 1.25. What quantity will the firm supply at a
price of Rs. 7 per unit?
Q.20. The price elasticity of supply of a commodity is 2.0. A firm supplies
200 units of it at a price of Rs. 8 per unit. At what price will it supply 250
units?
Thank You
PHYSICS:
1. An object is moving with velocity 36 m/s , calculate the distance travelled buy it in 1 hour.
is it really the distance travelled or the displacement , what will be the correct term for it.
2. An object is rolling on inclined surface , which type of motion is this ?
3. Distinguish between velocity and speed,
if I say an object is going north with speed of 30m/s , will it be a correct statement or not?
4. For racing purpose which type of cars should we use,
a ) a car with more acceleration
b) a car with less acceleration
justify your answer in detail.
5. If a person covers (x) distance in y seconds, z distance in y seconds and p distance in y seconds
calculate the average speed of that person.
6. Derive all three equation of motion and also define the uniform circular motion.
7. Distinguish between uniform and non-uniform motion.
8. Collect the data and images of different bikes and cars, paste their images and find out the
acceleration of each of them, and find out which one is best for acceleration purpose.
(at least 10), also mention which one is your favorite. Also mention the importance of
acceleration .
Subject- Chemistry
Solid State
1. What is the number of atoms per unit cell in a body-centred cubic structure?
2. What is the total number of atoms per unit cell in a face-centred cubic (fcc) structure?
3. Which point defect in crystals of a solid in which density decreases, increases or
remain same?
4. A compound of element X and Y has crystalline nature. The ccp lattice is formed by
anions of element Y and cation of element X occupies 2/3 rd of the octahedral voids.
What will be the formula of the compound?
5. Account for the following:
(a) Glass of old building is milky.
(b) Crystalline substances are anisotropic.
6. Explain each of the following with a suitable example:
(i) Paramagnetism
(ii) Antiferromagnetism
(iii) Frenkel defect in crystals
(iv) Ferromagnetism
(v) Ferrimagnetism
(vi) Schottky defect
7. (a) Explain electrical property of substances on the basis of Band Theory.
(b) Describe the two main types of semiconductors.
8. How would you account for the following?
(i) Frenkel defects are not found in alkali metal halides.
(ii) Schottky defects lower the density of related solids.
(iii) Impurity doped silicon is a semiconductor.
9. Iron has a body-centred cubic unit cell with a cell edge of 286.65 pm. The density of
iron is 7.87 g cm−3. Use this information to calculate Avogadro’s number.
(At. Mass of Fe = 56 g mol−1)
Solutions
1. State Henry’s law correlating the pressure of a gas and its solubility in a solvent and
mention two applications for the law.
2. An antifreeze solution is prepared from 222.6 g of ethylene glycol [C 2H4(OH)2] and
200 g of water. Calculate the molality of the solution. If the density of this solution be
1.072 g mL−1, what will be the molarity of the solution?
3. Calculate the temperature at which a solution containing 54 g of glucose, (C6H12O6),
in 250 g of water will freeze. (Kf for water = 1.86 K mol−1 kg)
4. State Raoult’s law for solutions of volatile liquids. Taking suitable examples explain
the meaning of positive and negative deviations from Raoult’s law. Why are they
caused?
5. Define the term osmotic pressure. Describe how the molecular mass of a substance
can be determined by a method based on measurement of osmotic pressure?
6. Differentiate between molality and molarity of a solution. What is the effect of change
in temperature of a solution on its molality and molarity?
7. 100 mg of a protein is dissolved in just enough water to make 10.0 mL of solution. If
this solution has an osmotic pressure of 13.3 mm Hg at 25°C, what is the molar mass of
the protein? (R = 0.0821 L atm mol−1 K−1 and 760 mm Hg = 1 atm)
8.. A solution prepared by dissolving 1.25 g of oil of winter green (methyl salicylate) in
99.0 g of benzene has a boiling point of 80.31 °C. Determine the molar mass of this
compound. (B.P. of pure benzene = 80.10 °C and Kb for benzene = 2.53 °C kg mol−1)
9. Calculate the freezing point depression expected for 0.0711 m aqueous solution of
Na2SO4. If this solution actually freezes at −0.320°C, what would be the value of Van’t
Hoff factor? (Kf for water is 1.86 °C mol−1)
Electrochemistry
1. Express the relation between conductivity and molar conductivity of a solution.
2. What is primary cell? Give an example.
3. The resistance of a conductivity cell containing 0.001 M KC1 solution at 298 K is
1500Ω. What is the cell constant if the conductivity of 0.001 M KCl solution at 298 K is
0.146×10−3 S cm−1?
4. Predict the products of electrolysis in the following:
(i) A solution of H2SO4 with platinum electrodes.
(ii) A solution of CuCl2 with Pt electrodes.
(iii) A solution of AgNO3 with silver electrode
5. What type of a cell is the lead storage battery? Write the anode and the cathode
reactions and the overall reaction occurring in a lead storage battery while operating.
6. Formulate the galvanic cell in which the following reaction takes place:
Zn(s) + 2Ag+(aq)
Zn2+ (aq) + 2Ag(s)
State:
(i) Which one of its electrodes is negatively charged.
(ii) The reaction taking place at each of its electrode.
(iii) The carriers of current within this cell.
7. Corrosion is essentially an electrochemical phenomenon. Explain the reactions
occurring during corrosion of iron kept in an open atmosphere.
8. Conductivity of 0.00241 M acetic acid solution is 7.896 × 10 −5 S cm−1. Calculate its
molar conductivity in this solution. If
for acetic acid be 390.5 S cm2 mol−1, what would
be its dissociation constant?
9. Three electrolytic cells A, B and C containing solutions of zinc sulphate, silver nitrate
and copper sulphate respectively, are connected in series. A steady current of 1.5
ampere was passed through them until 1.45 g of silver was deposited at the cathode of
cell B. How long did the current flow? What mass of copper and what mass of zinc were
deposited in the concerned cells?
(Atomic masses of Ag = 108, Zn = 65.4, Cu = 63.5)
10. Define molar conductivity of a substance and describe how for weak and strong
electrolytes, molar conductivity changes with concentration of solute. How is such
change explained?
11. A voltaic cell is set up at 25°C with the following half-cells:
Al | Al3+ (0.001 M) and Ni | Ni2+ (0.50 M)
Calculate the cell voltage.
13. Calculate the equilibrium constant and Δ rG° for the reaction
14. One half cell in a voltaic cell is constructed from a silver wire dipped in silver nitrate
solution of unknown concentration. Its other half-cell consists of a zinc electrode dipping
in 1.0 M solution of Zn (NO3)2. A voltage of 1.48 V is measured for this cell. Use this
information to calculate the concentration of silver nitrate solution used.
15. (a) State Kohlrausch law of independent migration of ions. Write an expression for
the molar conductivity of acetic acid at infinite dilution according to Kohlrausch law.
(b) Calcualte
Given that
for acetic acid.
(HCl) = 426 S cm2 mol−1
(NaCl) = 126 S cm2 mol−1
(CH3COONa) = 91 S cm2 mol−1
Chemical Kinetics
1. For the reaction
the rate law is expressed as
rate = k[Cl2][NO]2. What is the overall order of this reaction?
2. The decomposition of NH3 on platinum surface,
is a
zero order reaction with k = 2.5 × 10−4 M s−1. What are the rates of production of N2 and
H2?
3. Define the term
(i) rate of a reaction.
(ii) order of reaction
4. A first order decomposition reaction takes 40 minutes for 30% decomposition.
Calculate its t½value.
5. What is meant by the ‘rate constant, k’ of a reaction? If the concentration be
expressed in mol L−1 units and time in seconds, what would be the units for k (i) for a
zero-order reaction and (ii) for a first-order reaction?
6. (a) Derive the general form of the expression for the half-life of a first-order reaction.
(b) The decomposition of NH3 on platinum surface is a zero-order reaction. What are the
rates of production of N2 and H2 if k = 2.5 × 10−4 mol−1 L s−1?
7.(a) List the factors on which the rate of a chemical reaction depends.
(b) The half-life for decay of radioactive 14C is 5730 years. An archaeological artefact
containing wood has only 80% of the 14C activity as found in living trees. Calculate the
age of the artefact.
8. A reaction is of second order with respect to a reactant. How will the rate of reaction
be affected if the concentration of this reactant is
(i) Doubled,
(ii) Reduced to half?
9. A first-order reaction has a rate constant of 0.0051 min −1. If we begin with 0.10 M
concentration of the reactant, what concentration of reactant will remain in the solution
after 3 hours?
10. The rate constant for a reaction of zero order in A is 0.0030 mol L −1 s−1. How long
will it take for the initial concentration of A to fall from 0.10 M to 0.075 M?
11. A reaction is of first order in reactant A and of second order in reactant Β. How is the
rate of this reaction affected when (i) the concentration of B alone is increased to three
times (ii) the concentrations of A as well as B are doubled?
Computer Science
Develop a project/application using File Handling & Object oriented Programming technique.
The application should enable to handle following operations:
1.
2.
3.
4.
5.
Insert new record
Delete record
Search a record
Modify the record
Display the record
The project can be developed on any of following topics:1.
2.
3.
4.
5.
6.
7.
8.
Railway Reservation System
Student Management System
Payroll System
Hotel Management system
Stock management system
Library management system
Bank Management System
Employee Information System
Geography
Practical File
Chapter 1 – Data its source and compilation
Chapter 2- Data processing
Chapter 3 – Geographical representation of data
Home Work notebook
Q1. Visit any of the following geographical location. Hilly or
mountain dessert forested snowy area. Write about its relief,
vegetation, drainage and settlements.
Q2. Find out from the travel agent the document you need to travel
abroad
Q3. Visit a village and observe the cultivation of some crops. Ask
the farmer and make a list of various operations
Q.4. With the help of internet find out the latest Human
Development Report.
Q.5. Has someone in your family migrated. Write about his place of
destination, what made him migrate.
Biology
Q.N1-Define asexual reproduction and write its advantage.
Q2-How sexually reproduced offspring are more advantageous than asexually
reproduced?
Q3-Writ pre-fertilization and post fertilization events of sexual reproduction.
Q4-Draw well labeled diagram of Human male reproductive system.
Q5-Draw well labeled diagram of Human Female Reproductive System
Q6-Describe spermatogenesis and oogenesis.
Q7-Make graph of hormones in Menstural Cycle and writ their role in human fmale.
Q8-Describe megagametophyte development in angiospermic plants.
Q9-Describe embryology of Angiosperms .
Q10-Read unit 1 reproduction indetail and Mendel Law of Inheritance.