Class-12
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
4
What is meant by monotonic preferences?
Define market demand.
Give one reason for the shift in the demand curve.
What is normal good?
What does a rightward shift of demand curve indicate?
Derive the law of demand from the single commodity equilibrium condition "Marginal
Utility = Price".
What do you mean by inferior goods? Give example.
Distinguish between demand by an individual consumer and market demand of a good.
Q.1 to Q.38 all the CBSE questions of Ch-5 Elasticity of Demand (Pg 144 - Pg 147).
Write down the equation of budgetline and budget constration.
44.
Why cosumer will be at equilibrium when
45.
What happens when
1.
1.
2.
MRSxy 
MRSxy 
Px
Py
Class-12
Holidays ! Holidays ! on the way, enjoy and be gay.
This should be the way to learn and play !
HOLIDAY FUN -2016-17
Instructions :
Class - XII
1.
2.
3.
4.
1.
Px
Py
Accountancy
Complete Comprehensive Project - I (story, Statement of the problem / Name of the project
objective / Period of study / Source material / Tools of Analysis used / Processing and
tabulation of data / Diagrammatic / Graphic presentation - pie - diagrammes, bar diagrammes, and graphs. Derivations, Interpretation and conclusions, Assumption - (if
any).
Project File should be neatly handwritten and presentable with page numbers. Each step
of the solution needs to be highlighted. Condusions drawn should be placed in boxes of
the end.
All practical and Additional questions of chapter 6, 7, 8, 9 of I book to be completed in
Resisters. (issue of Shares, Issue of Debenturers, Redemptions of Deb. and ESOP.
Business Studies
Prepare notes of the following chapters (Units) in your school note book.
1.
Business Environment
(Unit - 3)
2.
Planning
(Unit - 4)
Prepare B.St. projects out of any two topics from the following on the basis of discussion
held in the class.
1.
Elements of Business Environment
2.
Principles of Management
3.
Stock Exchange
4.
Marketing
Follow CBSE guidelines while making projects. To take help visit cbse.nic.in.
Link - tsgrewal.co.in>pdj>tsgrewalbs1516
Use loose sheets and make a file.
Work should be neat and appealing.
Revise the lessons given for the formative examination.
Grades will be given for Holiday Fun as per CBSE, CCE norms
ENGLISH
Write a debate on : (1-20 Roll no. for the motion 21 - Onwards Against the motion)
*
Media distorts public opinion by being judgemental.
*
We need to start young in life to be successful.
2.
Write a self composed article / poem to be published in the school magazine.
3.
Based on your reading of 'The Invisible Man', answer the following questions in your
notebook in 150-180 words each.
a.
Decribe the robbery episode at dawn in Bunting's house.
b.
Narrate the episode of Mr. Thomas Marvel's first meeting with the invisible man.
c.
Describe the meeting of the invisible man with Dr. Kemp in the latter's bedroom.
d.
Describe how Griffin managed to protect and secure his theory of invisibility.
e.
Give a brief account of the murder of Mr. Wicksteed.
f.
How did the invisible man meet his end?
g.
The reader feels relieved at the end of the novel but feels a sense of sadness and
waste as well. Comment.
1.
2.
1.
2.
3.
Biology
Solve the worksheet based on board questions from chapters 14, 15 and 16 in your school
registers.
Collect data pertaining to your project topics.
Chemistry
Do the following questions from NCERT.
Unit-1 : 1.13, 1.16, 1.21
Unit-2 : 2.16. 2.20. 2.21. 2.28. 2.35. 2.38
Unit-3 : 3.5, 3.9, 3.17, 3.18
Make a rough draft of the investigatory project work as given to you and collect necessary
data or matter for the same.
Complete your practical record.
Class-12
2
Physics
1.
2.
Practical file :
a.
Comparing E.M.F. of two cells.
b.
Finding internal resistance
To be completed as
c.
Specific resistance
discussed in class
d.
Series & parallel combination of resistance.
Investigatory project / model along with report to be completed. Following investgatory
projects may be taken up
(i)
Wheat stone bridge using different wires.
(ii)
Calculating compressibility of various springs (changing number of turns and
changing diameter)
(iii) Studying the variation in the intensity of the bulb by using different wires for
connection.
(iv) Studying (iii) above with respect to change in voltage.
(v)
Studying variation in current by using different solenoids (changing no. of turns
changing diameter.
(vi) Studying (v) above by changing the solenoid.
(vii) Comparative study of time taken by a body to fall from certain height using
equations of motion and verity it.
(viii) Studying the rise in temperature of water, when subjected to same heat but using
different material.
(ix) Calculating refractive index of different liquids.
(x)
Finding impurity in a given sample of liquid, when refractive index is known.
(xi) Collecting secondary data on carbon-dating process and analysis of the same.
(xii) Studying various types of mobiles in terms of (wavelength and frequency of the
light / sound used) and study its effect on mankind.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
5.
6.
7.
8.
9.
10.
11.
12.
What is a market economy?
Why is production possibilities curve concave? Explain.
What is a planned economy?
Define economy.
OR
Define the meaning of economy.
Define macroeconomics.
How is production possibility curve affected by unemployment in the economy? Explain.
Define microeconomics.
What is opportunity cost?
OR
Define opportunity cost.
Explain how a production possibility curve is affected when resources are inefficiently
employed in an economy?
State reasons why does an economic problem arise?
OR
Why does an economic problem arise? Explain.
What is opportunity cost? Explain with the help of a numerical example.
What is marginal rate of transformation? Explain with the help of example.
OR
Explain the concept of marginal rate of transformation with the help of an example.
Explain the central problem of 'How to Produce'.
Define production possibilities cruve. Explain why is it downward sloping from left to
right.
OR
Why is production possibilites curve downward sloping? Explain
Explain the meaning of opportunity cost with the help of production possibility schedule.
With the help of suitable example explain the problem of 'for whom to produce'.
OR
Explain the central problem 'for whom to produce'.
Explain the problem of 'what to produce'.
A consumer consumes tow goods X and Y. State and explain the conditions of consumer's
equilibrium with the help of utility analysis.
A consumer consumes only two goods X and Y. At a consumption level of these goods, he
finds that the ratio of marginal utility to price in case of X is higher than in case of Y.
Explain the reaction of the consumer.
Explain the relation between total utility and marginal utility.
A consumer consumes only two goods X and Y and is in equilibrium. Price of X falls and
price of Y rises. Explain the reaction of consumer in both conditions.
By spending his entire income only on two goods X and Y a consumer finds that
Marginal utility of X Marginal utility of Y

Pr ice of X
Pr ice of Y
Economics
1.
2.
3.
4.
3
Class-12
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
Explain how will the consumer react.
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 goods X. Use utility analysis.
Explain the properties of indifference curve.
Explain the concept of marginal rate of substitution by giving an example.
What are monotonic preferences? Explain why is an indifference curve (i) downward
sloping from left to right, (ii) Convex.
Explain the conditions of consumer's equilibrium with the help of indifference curve
analysis.
Define an indifference map. Explain why an indifference curve to the right shows higher
utility level.
Explain the difference between cardinal utility and ordinal utility. Give examples in each
case.
What is budget set? Explain what can lead to change in budget set.
Explain why is an indifference curve downward sloping from left to right. State the
conditions of consumer's equilibrium in indifference curve analysis.
Explain the meaning of diminishing marginal rate of substitution.
Explain consumer's equilibrium with the help of indifference curve analysis.
Class-12
5
Class-12
1.
2.
Informatics Practices
Prepare the "Project Planning Document" on the topic given to you and your Project
Partner. the details of the same will be discussed by your teacher in the class.
Mr. Sharma works as a programmer in "ABC Car Rental Company" Where she has
designed a software to compute charges to be paid by the client. A screenshot of the same
is shown below -
A client can take any car out of Deluxe/Semi Deluxe/Ordinary for rent.
A client can also opt for services of a guide. Charges vary depending on the type of car
opted. Charges of services of guide are extra.
Help Mr. Sharma in writing the code to do the following :(i)
After selecting appropriate Radio Button and check box (if required), when
'CALCULATE" button is clicked, Amount, Guide charges and Total Amount should
be calculated and displayed in the respective text fields.
Category of Car
(ii)
(iii)
Amount (in Rs.)
Deluxe Car
1000 per day
Semi Deluxe Car
800 per day
Ordinary Car
700 per day
Amount is obtained by multiplying per day charges of Car with number of days
for which the car is taken.
If 'Guide Required' checkbox is selected, guide charges per day are Rs. 500.
Guide charges is calculated as = Car required for no. of days *500;
Total Amount = Amount + Guide Charges
When "CLEAR" button is clicked, all text fields and check box should be cleared.
When "CLOSE" button is clicked, the application should close
Class-12
6
3.
Table - Employee
Emp ID F_Name L_Name Salary Address
101
102
103
104
Ajay
Amar
Anand
Abhay
Sharma
Gupta
Verma
Kumar
PF
Job
Hire Date
Dept_Name Mor_Name Exp
20000 Jaipur 1200 Clerk 11/12/2000
Sales
15000 Null 1000 Clerk 11/11/2003 Accounts
35000 Kota 2200 Admin 1/12/2013
IT
40000 Agra 3000 Admin 1/11/2015
HR
Jay
Vinod
Jay
Rahul
5
7
3
1
Write SQL queries for the following.
(i)
Write a query to get all employee details from the employee table in descending
order of first name.
(ii)
Write a query to get the first 3 characters of F_Name from employee table.
(iii)
Write a query to display f_name, l_name and salary for all employees whose
salary is not in range of 1000 and 15000.
(iv)
Write a query to get f_name, l_name who joined in month of June.
Entrepreneurship (Market Survey)
* Conduct a market research with the objective of estimating demand for an existing
product in the market. Students will have to give an innovative suggestion to the product.
7
Class-12
1.
2.
3.
4.
5.
6.
MATHS
R = {(a, b) : a  b2, a, b  Q} prove R is neither reflexive nor symmetric nor transitive.
R = {(a, b) : 1 + ab > 0, a, b  Q} prove R is reflexive symmetric but not transitive.
How many relations on A = {1, 2, 3} including (1, 2) and (2, 1) are equivalence relations.
f : {(a, 1) (b, 2) (c, 3)}
g : {(1, P) (2, r) (3, q)}
Prove (fog)–1 = g–1of–1
f : R  R, f(x) = | x | prove f is neither one one nor onto.
f(x) = [x], on R, prove f is neither one one nor onto.
7.
f : Rt  [ 5, ) , f(x) = 9x2 + 6x – 5, prove f is invertible find f'(x).
8.
f (x) 
9.
3x  2
prove fof(x) = x.
2x  3
10.
11.
a * b = a + b – ab on Q – {1} prove * is binary. Commutative, Associative. Find inverse
and identity element.
s = {0, 1, 2, 3, 4, 5} a * b = a + b, a + b < 6, a * b = a + b – 6, a + b > 6.
Evaluate : sin–1 sin 10c
12.
Evaluate :
4
1
tan  cos 1 
5
2
13.
Evaluate :
tan 1
tan 1
Gyidelines
1.
Select any product
a(a  b  c)
b( a  b  c )
c (a  b  c)
 tan 1
 tan 1
bc
ac
ab
2.
Think of an innovation in the selected product (innovation could be in product
content, feature, design, packaging distribution, strategy, sirvice etc.
3.
Test the feasibility of this innovation via market analysis using an objective
questionnaire.
14.
Evaluate :
4.
Competition analysis (2-3 existing brands)
15.
Solve for x, 3cos–1 x + 4sin–1 x =
5.
Questionaire Analysis.
16.
Prove :
6.
Recommendation to the company.
17.
tan–1 x + tan–1 y + tan–1 z = 
Prove x + y + z = xyz
18.
Evaluate :
tan 1
19.
Evaluate :

1
tan   2 tan 1 
5
4
20.
Prove :
cot 1
"A" conduct a simple market survey with the objective of estimating demand for an
existing product in the market. (Student will have to give an innovative suggestion to
the product)
"B" conduct a survey for a new innovative product.
"C" conduct a survey for study on :
a.
Smoking habits
b.
Skill trading option in an economic backward neighbourhood
c.
Wearing helmets
d.
Attitude of road users
e.
Conservatino of electricity
f.
Rainwater Harvesting
xy
yz
zx
 tan 1  tan 1
if x2 + y2 + z2 = r2
zr
xr
yr
2
 1
b
 1
b
2b
tan   cos 1   tan   cos 1  
a
a
a
4 2
4 2
xy
x
 tan 1
y
xy
ab  1
bc  1
ac  1
 cot 1
 cot 1
0
ab
bc
ca
END
HAPPY HOLIDAYS