TECNIA INTERNATIONAL SCHOOL (An English Medium Senior Secondary School Affiliated To CBSE)

F-19, SECTOR-8, ROHINI

NEW DELHI-110085

General Instruction:-

Paste & complete all the worksheets in the respective notebooks.

ENGLISH

WORKSHEET I

CLASS XII

MY MOTHER AT SIXTY SIX

Answer the following questions in 50 -60 words

1) With whom the poet’s mother’s has been compared to in the poem “My Mother At sixty Six” and why?

2) What familiar ache did the poet has? Justify.

3) Explain “young trees sprinting, merry children spilling out of their homes”.

4) What is the significance of the word ‘smile ‘in the poem “My Mother at Sixty Six”?

Advanced writing skills

5) You are Sophie, a student of class XII. You have lost your book from the school hall. Write a

notice for the school notice board in not more than 50 words giving detailed description of the

book.

6) Your school is celebrating its Silver Jubilee. As the Secretary of the Cultural Forum, write a notice

in about 50 words, informing the students about this ceremony.

7) Your school is holding a summer camp for training students in Basketball. Write a notice in not

more than 50 words to be displayed on the notice board of your school. You are the Sports

Captain of the school.

8) You are the president of Avalon Midwest Welfare Apartment, New York. Write a notice to be

circulated to the members of the association, requesting them to attend a meeting to discuss the

renovation of premises.

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CLASS-XII

SUBJECT-PHYSICS

WORKSHEET-1

TOPIC: ELECTROSTATICS

Q1. Force between two points electric charges kept at a distance d apart in air is F. If these charges are kept at

the same distance in water, how does the force between them change?

Q2.Two point charges 10µC and 20µC are separated by a distance r in air. If an additional charge of -8µC is

given to each, by what factor does the force between the charges change?

Q3. Two extremely small charged copper spheres have their centres separated by a distance of 50cm in

vacuum. (a) What is the mutual force of electrostatic repulsion if the charge on each is 6.5x10-7

C? (b)

What will the force of repulsion if (I) the charge on each sphere is doubled and their separation is halved

(ii) Two spheres are placed in water (dielectric constant of water is 80)?

Q4. Calculate the Coulomb force between a proton and an electron separated by a distance of 0.8x10-15

m.

Q5. Two point charges Q are kept at a distance r from each other. A third charge q is place on the line joining

the above two charges such that all the three charges are in equilibrium, What is the magnitude, sign and

the position of the charge q?

Q6. A charge q is placed at the centre of the line joining two equal charges Q and Q. Calculate the value of

charge q such that all the three charges are in equilibrium. Also mention the nature of this charge.

Q7. Two point charges of charge values Q and q are placed at a distance of x and x/2 respectively from a third

charge of charge value 4q, all charges being in the same straight line. Calculate the magnitude and nature of

charge Q such that the net force experienced by the q charge is zero.

Q8. Two point electric charges of values q and 2q are kept at a distance d apart from each other in air. A third

charge Q is to be kept along the same line in such a way that the net force on q and 2q is zero. Calculate

the position of the charge Q in terms of q and d.

Q9. Force of attraction between two point charges placed at a distance ‘d’ apart in a medium is ‘F’. What

should be the distance in the same medium so that the force of attraction between them becomes 9F?

Q10. Two similarly and equally charged identical metal spheres A and B repel each other with a force of

2x10-5

N. A third identical uncharged sphere C is touched with A and then placed at the mid point between

A and B. Calculate the net electric force on C.

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CLASS-XII

SUBJECT- CHEMISTRY

WORKSHEET-1

TOPIC- THE SOLID STATE

Q1 Under which situations can an amorphous substance change to crystalline form?

Q2 What type of interactions hold the molecules together in a polar molecular solid?

Q3 (i) What is the significance of the following in crystal structure:

(a) a, b and c

(b) , and

(ii) What are the values of the above in tetragonal structure? Give an example of a solid

having this structure.

Q4 What is the coordination number in a rock salt type structure?

Q5 What is the number of tetrahedral voids in a unit cell of a cubic close-packed structure?

Q6 In a compound, nitrogen atoms (N) make cubic close packed lattice and metal atoms (M)

occupy one third of the tetrahedral voids present. Determine the formula of the compound

formed by M and N.

Q7 An element occurs in bcc structure. It has a cell edge length of 250 pm. Calculate the molar

mass if its density is 8.0 g cm-3

. Also calculate the radius of an atom of this element.

Q8 The unit cell of an element of atomic mass 108 u and density 10.5 g cm-3

is a cube with edge

length 409 pm. Find the type of unit cell of the crystal.

Q9 (i) What are intrinsic semiconductors? Give an example.

(ii) Copper crystallises with face-centred cubic unit cell. If the radius of copper atom is 127.8 pm,

calculate the density of copper metal.

Q10 How are the following properties of crystals affected by Schottky and Frenkel defects?

(i) Density (ii) Electrical conductivity

Q11 Why does LiCl acquire pink colour when heated in Li vapours?

Q12 How is ferromagnetism different paramagnetism?

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CLASS XII MATHS

WORKSHEET1

MATRICES AND DETERMINANTS

Q1.

Q2.

Q3.

Q4.

Q5.

Q6.

Q7.

Q8.

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WORKSHEET – 1 (2017-2018)

SUBJECT – BIOLOGY

CLASS - XII

Q1 Oral pills for birth control, contain combination of which hormones?

Q2 Who can be said as reproductively healthy?

Q3 How IUDs help in birth control?

Q4 What is Lactation Amenorrhea? How safe this time is for coitus?

Q5 MTP is helpful in controlling population. Comment on this statement.

Q6 A woman who can not produce ovum but have suitable environment in her body for fertilization, which

technique will she adopt for becoming a mother?

Q7 What are the changes which take place during juvenile phase , reproductive

phase and senescent phase?

Q8 Name reproductive structures in the following:

A)Penicillium b) Water Hyacinth c) Agave d) Sponge e) Chlamydomonas

Q9 Explain formation of pollen grains.

Q10 Describe structure and function of pollen grain.

Q11 Why it is difficult to get rid of Water hyacinth from a water body?

Q12 Describe the formation and function of corpus luteum.

Q13Define spermiogenesis. Where does it occur?

Q14 Name the muscular and glandular layers of human uterus. What are their functions? Name the hormones

essential for the maintenance of this layer.

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Class: XII

Sub: Computer Science C++

Worksheet 1

Topic: Programming in C++ - Concepts

Q1 Which C++ header file(s) will be essentially required to be included to execute the

following C++ code:

void main()

{

char Msg[ ]="Sunset Gardens";

for (int I=5;I<strlen(Msg);I++)

puts(Msg);

}

Q2 Name the header files that shall be need for the following code:

void main()

{

char text[] =”Something”

cout<<”Remaining SMS chars: ”<<160-strlen(text)<<endl;

}

Q3 Rewrite the following program after removing the syntactical error(s) if

any.Underline each correction.

#include<iostream.h>

Class Item

{

long IId, Qty;

public:

void Purchase { cin>>IId>>Qty;}

void Sale()

{

cout<<setw(5)<<IId<<”Old:”<< Qty<<endl;

cout<< “New :”<<Qty<<endl;

}};

void main()

{

Item I;

Purchase();

I.Sale()

}

Q4 Find the output of the following program:

#include<iostream.h>

#include<ctype.h>

typedef char Str80[80];

void main()

{char *Notes;

Str80 str= “ vR2GooD”;

int L=6;

Notes =Str;

while(L>=3)

{

Str[L]=(isupper(Str[L])? tolower(Str[L]) : toupper(Str[L]));

cout<<Notes<<endl;

L--;

Notes++;

}}

Q5 Observe the following program and find out, which output(s) out id (i) to (iv) will not

be expected from program? What will be the minimum and maximum value assigned to

the variables Chance?

#include<iostream.h> CBSE 2012

#include<stdlib.h>

void main()

{

randomize();

int Arr[] = {9,6};

int N;

int Chance = random(2)+10;

for(int c=0;c<2;c++)

{

N= random(2);

cout<<Arr[N]<< ”#”;

}}

i) 9#6#

ii) 19#17#

iii) 19#16#

iv) 20#16#

Q6 Find the output of the following program:

#include<iostream.h>

class METRO

{

int Mno, TripNo, PassengerCount;

public:

METRO(int Tmno=1) { Mno =Tmno; PassengerCount=0;}

void Trip(int PC=20) { TripNo++, PassengerCount+=PC};

void StatusShow()

{

cout<<Mno<< “:”<<TripNo<< “ :”<<PassengerCount<<endl;}

};

void main()

{

METRO M(5), T;

M.Trip();

M.StatusShow();

T.StatusShow();

M.StatusShow();

}

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CLASS – XII

SUBJECT – I.P

WORKSHEET – 1

CHAPTER – 1

Q1. Match the letters to the networking terms listed under Figure. All terms will be used and each term will

be used only once.

Figure

A. ______________________ B. ______________________ C. ______________________

D. ______________________ E. ______________________ F. ______________________

G. ______________________

Terms –

Q2. All of your company’s offices are located in Boston and the surrounding suburbs. You need to prepare a

networking solution that enables employees in all six offices to communicate both internally in that office and,

to a lesser extent, between the other offices. The farthest distance between any two offices is 50 miles. Most

user resource requirements are met by servers located in the same office as the users who need to access them.

The main communication requirements between offices relate to e-mail and periodic file transfers. You have

Wired network, Wireless network, Hub, Client computer, Router, Cable plant, Wireless access point

been promised a budget sufficient to meet the requirements, but you have also been told to keep costs to a

minimum.

a) What network type should you use to configure the complete network?

b) What network type should you use to configure each office?

c) How many internetwork connections would you typically configure at each office?

d) What are potential concerns related to the connections between the offices?

Q2. How is peer-to-peer network different from client/server network, considering how programs, data and

information are stored?

Q3. Compare the following network topologies.

Bus topology Ring topology Star topology

Characteristics

Advantages

Disadvantages

Diagram

Q4. How is peer-to-peer network different from client/server network, considering how programs, data and

information are stored?

Q5. Your company occupies the top three floors of a building. Other companies have offices on the floors

below you. You want to design the network that is as easy to manage as possible. You

want to minimize the potential impact of problems on any one floor to the other two floors. You

are implementing this network as a wired network.

1. What network type should you use to configure the complete network?

2. What network type should you use to configure each floor?

3. In general terms, describe how you would connect the floors.

4. What type of network device should you use to connect the computers on each floor?

5. What one component’s failure would prevent the floors from communicating with each other?

How would this component failure impact communications between all of the computers on a

single floor?

6. What role might the Internet have in this configuration?

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Class - XII

SUBJECT–ECONOMICS

WORKSHEET-1

TOPIC –INTRODUCTION (UNIT-1) Q.1 Define the following terms:

(i) Economics (ii) PPC (iii) Opportunity cost (iv) marginal opportunity cost(v) Needs (vi) Wants

Q.2 What do you mean by economizing of resources?

Q.3 Giving reason comment on the shape of production possibilities curve based on the following schedule:-

Good x (units) Good Y (units)

0

1

2

3

4

10

9

7

4

0

Q.4 What will be the impact of recently launched ‘’Clean India Mission’’ on the production possibilities curve

of the economy and why?

Q.5 What will likely be the impact of foreign capital on the production possibilities curve of the economy and

why?

Q.6 What is likely to be the impact of Make in India appeal to the foreign investors by the Prime Minister of

India on the production possibilities of India? Explain.

Q.7 What is likely to be the impact of efforts towards reducing unemployment on the production potential of

the economy? Explain.

Q.8 What will be the impact of ‘’Education for all campaign’’ (Sarva Shiksha Abhiyan) on the production

possibilities curve of the Indian economy and why?

Q.9 What will be the impact of large scale inflow of foreign capital in India on the production possibilities

curve and why?

Q.10 Do rich countries also face central problems? Give reason for your answer.

Q.11 Explain the effects of floods in Jammu and Kashmir on its production possibilities frontier.

Q.12 Describe the problem of ‘’what to produce’’?

Q.13 The government establishes a large number of institutes of science and technology. How will it affect the

production possibility frontier?

Q.14 Explain the central problem ‘’for whom to produce’’/”distribution of income”?

Q.15 Why is production possibilities curve concave? Explain.

Q.16 Why is production possibilities curve downward sloping? Explain. Why does the problem of ‘’how to

produce’’ arise? Explain

Q.17 Give difference between micro-economics and macro-economics?

Q.18 Explain the central problems of an economy?

Q.19 What will be the shape of PPC if :

(i) Marginal Opportunity Cost(MOC) is increasing.

(ii) Marginal Opportunity Cost (MOC) is constant.

(iii) Marginal Opportunity Cost (MOC) is decreasing.

Q.20 Explain how scarcity and choice go together?

Q.21 Economics is about making choice in the presence of scarcity.Explain.

Q.22 Name the central problems of an economy and explain the reason why they arise?

Q.21 Name the two characteristics of (i) resources, and (ii) wants?

Q.22 Explain the central problem of how to produce?

Q.23 Explain “opportunity cost” with the help of an example?

Q.24 An earthquake occurs and building and shops are destroyed .Explain its impact on production possibility

curve?

Q.25 Give two examples each of:

(i) underutilization of resources.

(ii) growth of resources.

Q.26 An economy always produces on but not inside the PPC? Explain.

Q.27 Give two reasons each of (i) rightward shift of PPC ,and (ii) leftward shift of PPC.

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WORKSHEET – 1 CLASS – XII

SUBJECT – BUSINESS STUDIES TOPIC-NATURE OF MANAGEMENT

1. ‘Successful organizations do not achieve their goals by chance. Rather they have to follow a process.’

(i) Identify the process

(ii) Define the process.

(iii) List its objectives

2. A company has achieved the target sales of 10,000 units but the advertisement expenditure has

crossed the target limit. Is the performance of company efficient and effective? Give reason.

3. Identify the characteristics of management in the following

(i) McDonalds offers ‘Aloo Tikki Burger’ to attract Indian customers.

(ii) An organization consists of diverse individuals with different needs.

(iii) Effect of management can always be noticed in every successful & unsuccessful

organization.

(iv) It integrates the efforts of all members towards achieving the objectives.

(v) Management consists of ongoing series of functions.

(vi) In an organization employees are happy & satisfied & no chaos exists.

(vii) Management is to be seen in business & non business organizations

(viii) With the introduction of per second call by a cellular company, other cellular

companies also started offering per second calls to maintain market share.

4. Identify the objective of management in the following

(i) A company uses environmental friendly methods of production.

(ii) Management provides competitive salaries & perks.

(iii) Management offers employment to physically challenged people.

(iv) The revenue generated by a firm is just sufficient to cover the cost of production.

(v) Management provides peer recognition.

(vi) Generate employment opportunities for weaker section of society.

(vii) A business needs to add to its prospects in the long run.

(viii) Management provides for personal growth & development of employee.

(ix) Through e-chaupal, ITC aims to change the quality of life & the entire outlook of the

Indian farmers.

(x) ABC group of cos. Decide to donate 2% of its sales to CRY for improving the condition

of children in India.

5. Identify the different levels of management in the following cases:

(i) Ritu is the manager of the northern division of a large corporate house

(ii) Sachin determines the overall objectives & strategies for the organization.

(iii) Ramesh interacts with the actual work force.

(iv) Aditya is responsible for framing the plans & policies of AB industries.

(v) Dinesh is a superintendent in a cargo co.

(vi) Harish is a plant superintendent in the cargo co.

(vii) Dinesh is working as ‘operations manager’ in Tifco ltd.

(viii) Tanvir is responsible for assigning work to employees & representing their grievances to

his boss

(ix) Ram is working as a regional manager.

(x) Prabhu decides opening a new branch of the business.

(xi) Raman is responsible for the welfare & survival of the organization.

(xii) Tapasya is responsible for implementing & controlling the plans & strategies of the

organization.

6. Why management is called an inexact science?

7. A company is suffering losses because production department is producing more output than required

& sales department is not able to sell the given output.

(i) Identify the quality of management lacking.

(ii) Define the same.

(iii) Is it a separate function of management?

(iv) List its importance.

8. Identify the nature of management

(i) Management is a systematized body of knowledge that explains certain general truths.

(ii) It is practiced as personal application of existing theoretical knowledge in one’s own

unique manner.

(iii) There has been an increase in the corporate form of business & increasing emphasis on

managed business concern.

9. Identify the functions of management:

(i) Leading, influencing & motivating employees to perform the tasks assigned to them.

(ii) Assigning duties grouping tasks, establishing authority & allocating resources required

to carry out a specific plan.

(iii) Recruitment & selection of the personnel.

(iv) Finding out deficiencies in implementation of plans with the result achieved.

(v) Deciding the objectives, policies & procedures to be followed in the company.

10. PQR.Power Ltd.set up a factory for manufacturing solar lanterns in a remote village as there was no

reliable supply of electricity in rural areas. The revenue earned by the company was sufficient to cover

the cost & the risks. The demand of lanterns was increasing day by day, so the company decided to

increase production to generate higher sales. For this they decided to employ people from the nearby

villages as very few job opportunities were available in the area. The company also decided to open

schools & crèches for the children of its employees.

(i) Identify the objectives by quoting the lines from above.

(ii) Identify two values which the company wanted to communicate to the society.

11. A cloth manufacturer distributes its defective product at free of cost (after getting them repaired from

Nari Niketan at lower cost) to orphanage. Identify the values highlighted.

12. A manufacturer of fridge has used new technology in place of using harmful gases, which do not cause

air pollution. Which value is being highlighted?

13. Hi tech ltd is a company manufacturing IT products. The company’s profits are enough for

survival and growth. The management of the company believes that a satisfied employee

creates a satisfied customer, who in turn creates profits that lead to satisfied

shareholders. So it pays competitive salaries and perks to all its employees. The company

has strong sense of social responsibility. It has set up educational institutions in fields of

management in which 25 % students are girls to whom company gives 50% scholarships.

Is the management of hi tech solutions ltd fulfilling its objectives? Justify your answer.

14. Joy entertainment co. is organizing circus shows internationally for the last ten years.

Their shows have been successful all over the world. Of late, their shows are not popular

as they were in the past. They are thinking of bringing changes in their shows to gain wide

popularity.

(i) Identify the feature of management they reflect in their co. give reason.

(ii) What necessary steps should each level of management take to bring the co. back on track?

15. In Premier Ltd Mr. Gurpreet a production manager is different and has his own

personalized and unique style of managing things. He tells his employees that we should

work with team spirit, coordination and towards achieving the goals. In a board meeting,

it has been decided that the co. will change some of its products features so as to make it

more useful for the consumers and to face the intense competition. Mr. Gupreet explains

this decision so as to make it more useful for the consumers to all employees of the

organization.

(i) Identify the nature of management highlighted above by quoting the lines.

(ii) Name and explain the characteristic of management reflected above by quoting the lines.

16. Pramod Ltd is a highly reputed company. Different functions are performed by different

people in this company who are bound together in a hierarchy of relationships. Each

person in the hierarchy is responsible for successful completion of a particular task. Mr.

Gurpreet for is responsible for survival and welfare of the organization. He forms all the

goals and strategies. Mr. Rahul ensures quality of output is maintained, wastage of

material. Mr. Savinder assigns necessary duties and responsibility of the personnel and

motivates them to achieve desired objectives. At what levels of management are Mr.

Gurpreet, Mr. Rahul and Mr. Savinder working in Pramod Ltd.

17. The general manager of Dehradun wood Pvt Ltd called a meeting of the production

manager and sales manager. He explained to them that both these departments are the

base of the company’s success therefore it is very necessary for both of them to work

with coordination. Also they were told that whatever decision they took for their

respective departments should be communicated to each other. They did the same as a

result there never rose a situation in the co when the sales order could not be compiled

with because of the shortage of goods. Identify the importance of coordination in the

above paragraph.

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WORKSHEET 1

CLASS XII

SUBJECT ACCOUNTANCY

TOPIC GOODWILL:NATURE AND VALUATION

Q1) The goodwill of a firm is estimated at two years’ purchase of the average profit of the last 5

years.

If goodwill of the firm is determined at Rs.47,200 and profits or losses of last 4 years is given

as:

Year Profit (Rs.) 2010 25,000

2011 ?

2012 27,000(loss)

2013 35,000

2014 40,000

Calculate profit or loss earned by the firm in the year 2011.

Q2) X and Y are partners sharing profits and losses in the ratio of 4:3. They agreed to admit Z as

a partner for 1/5th share. For this purpose, the goodwill of the firm is to be calculated on the

basis of 3 years’ purchase of last 4 years average profits.

The profits for the last four years were:

Years Profits(Rs.) 2009 70,000 (after allowing interest on investment of Rs.5,000)

2010 25,000( after charging loss of Rs.6,995 on sale of plant)

2011 61,000

2012 45,000

The following additional information is provided:

a) On 1.7.10, the firm had purchased a computer for Rs.30,000 and it was debited to stationery

expenses. Depreciation is to be charged on computer @10% on diminishing balance method.

b) The closing stocks of 2010 and 2011 were overvalued by Rs.3,000 and Rs.2,000 respectively.

c) To cover the operating cost, an annual charge of Rs.4,500 should be made for the purpose of

goodwill valuation. Calculate goodwill of the firm.

Q3) A and B are partners sharing profits and losses equally. They decide to admit C for an equal

share. For this purpose, the goodwill is to be valued on the basis of capitalization of super profit.

The firm had assets of Rs.5,00,000 including cash of Rs.20,000. The firm also had a reserve fund

of Rs.90,000 and partners’ capital accounts showed a balance of Rs.3,80,000. The creditors are

of Rs.30,000. Average maintainable profit of the firm is Rs.65,000. The normal rate of return

expected is 10%p.a. Calculate the value of goodwill.

CLASS 12

GRAPHIC DESIGN

WORKSHEET 1

CHAPTER – 1 ROLE OF DESIGN IN SOCIETY

Q1. Pick up five designs from your surroundings and briefly describe their aesthetic, functional

and semiotic characteristics.

Q2. Design a logo for Olympic games.

Q3. Design a poster on the following social issues:-

a) “Say No to Tobacco”

b) Child Labour

c) Female foeticide

d) Global warming

e) Domestic violence

Q4. As a Graphic Designer, how can you make your design eco – friendly? Give five

suggestions.

Q5. What is the role of Graphic Design in a society?

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CLASS: XII

SUB: MULTIMEDIA AND WEB TECHNOLOGY

WORKSHEET 1

TOPIC: DESIGNING WEB PAGES

1. Write the HTML code to generate a web page in the format given below:

i) Background color of page is “orange”.

ii) Welcome is a heading.

iii) The list is unordered list.

iv) Create a link “This is a link”.

v) The font face is “Arial” and size is 6.

2. Write the HTML code to generate a web page having colorful table in the format given below:

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CLASS – XII

WORKSHEET – 1

SUBJECT – HISTORY

Read the following sources carefully and answer the questions which follow:-

SOURCE 1

Q1. What were curry stones?

Q2. How do they throw light on the eating habits of the Harappans?

SOURCE 2

Q1. How was drainage system peculiar to the Harappans ?

Q2. Describe in detail the important features of the drainage system during this

period ?

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WORKSHEET – 1 SUBJECT – SOCIOLOGY

CLASS - XII

Q1.What is Demography ?

Q2.What is the difference between Formal Demography and Social Demography ?

Q3. What is Infant Mortality Rate ?

Q4 . Write the Principles of Malthusian Theory of Population.

Q5. Write the reasons for declining child sexratio.

Q6.Briefly explain the regional differences for the decline of Child sex ratio.

Q7. Describe the principles of DemographicTransition.

Q8. Why are the Urban centres becoming an attraction for rural people?

Q9. What were the reasons for the setbacks of the National Family Planning

Program during the Emergency (1975-76) in India?

Q10. What do you understand by Demographic Orientation? How is it helpful in

the economic advancement and prosperity?

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