Download Banyan Tree School, Lodhi Road Summer Holiday Assignment

Class :XII
Banyan Tree School, Lodhi Road
Summer Holiday Assignment -2015-16
Subject: Chemistry
Unit – 1 (Solid State)
1 mark questions
1. Why amorphous solids are called pseudo solids or super cooled liquids?
2. Why crystalline solids are anisotropic?
3. How many tetrahedral and octahedral voids are there for each sphere?
4. What is non-stoichiometric solid??
5. How ionic solid can be distinguished from a metallic solid?
6. What are F-centres?
7. What will happen to conductivity of metals and semiconductors, when there is increase in
temp.?
2 marks questions
8. What is Schottky defect? What is its effect on the density of crystal?
9.Which type of solid can be used for the preparation of permanent magnet and why?
10. Differentiate schottky and Frenkel defect.
11. What is the difference between n-type and p-type semiconductors? Give one example
of each.
12. Derive expression for percentage packing efficiency of body centered cubic un it cell ?
13. Define ferromagnetism and Ferrimagnetism and show alignment of their magnetic
moments.
14. Explain the term 'unit cell' and 'crystal lattice'.
3 marks questions
15. Analysis shows that a metal oxide has the empirical formula M0.98 O1.00. Calculate the
percentage of M2+ and M3+ ions in the crystal.
16. What is disorder or imperfection? Explain any two types of imperfections in solids.
17. An element crystallizes in bcc structure. If edge length of cell is 1.469 x 10-8cm and
density 19.3g/cm3, then calculate the atomic mass of the element.
Class - XII
Unit – 2 (Solutions)
(1 mark questions)
1. In deep sea diving, why the condition "the bends" occur?
2. How is the molarity different from the normality?
3. Why molality is considered better for expressing the concentration as compared to
molarity?
4. Why "Anoxia" occurs at high altitudes?
5. What is the similarity between Raoult's law and Henry's Law.
6. What are azeotropes?
7. What are anti-freeze solutions? Give one example.
(2 marks questions)
8. Why common salt is used to clear the snow on the roads?
9. How plasmolysis is different from hemolysis?
10. What is Van't Hoff factor? Give its value for solutes undergoing association and
dissociation in solution.
11. What is Henry's law? Give its 2 limitations.
12. Differentiate Ideal and Non-ideal solutions.
13. What is relative lowering in vapour pressure? Which out of lowering in V.P. and relative
lowering in V.P, is a colligative property?
14. What happened to peeled egg when dipped in water? Explain.
(3 marks questions)
15. How elevation in boiling point is a colligative property? Explain.
16. Addition of 1.286 gm of a compound to 100 ml. of benzene (density 0.879 g/ml) lowers
the freezing point from 5.51oC to 5.030C. If Kffor benzene is 5.12 K kg/mol, calculate the
molar mass of the compound?
17. Non-ideal solutions show positive and negative deviations from Raoult's law. What are
these deviations and why they are caused?
(Haloalkane and Haloarenes)
(1 mark questions)
1. Why fluorination of hydrocarbons with F2 gas occurs explosively?
2. Write the major product of the reaction :
Alcohol
AgCN
CH2 CHBr
3. Give 2 uses of Freon.
4. Give the name of the reaction, in which only haloarenes are treated with sodium,
formingdiaryls.
5. Why the boiling points of chlorides, bromides and iodides are considerably higher
than those of the hydrocarbons of comparable molecular mass?
6. What is Kharasch effect or peroxide effect?
7. Give 1 test for detection of unsaturation (double or triple bond) in an organic molecule.
(2 marks questions)
8. Explain Finkelstein reaction.
9. Bromoalkanes can be easily prepared by refluxing the silver salts of a fatty acid. Name
and explain the reaction.
10. Explain the stability of the haloalkanes having the same alkyl group.
11. In the formation of alkenes, dehydrohalogenation is classified as -elimination reaction.
Explain.
12. According to Saytzeff's rule, show saytzeff's elimination in case of haloalkanes.
13. (i) What is ambident nucleophile.
(ii) Give 'Williamson Synthesis' reaction.
14. Explain the reactivity of alkyl halides towards SN1 reactions.
(3 marks questions)
15. How haloarenes are prepared from diazonium salts. Explain, by giving names of the
reactions.
16. For isomeric alkyl halides, the boiling points decrease with branching. Explain.
17. Give the uses and environmental effects of Freon/DDT/Iodoform.
(Alcohols, Phenols and Ethers)
(1 mark questions)
1. Solubility of alcohols in water decreases with increase in molecular mass of the
alcohol. Why?
2. Why primary alcohols are the strongest acids and tertiary the weakest?
3. What is coupling reaction?
4. Give 2 uses of ethanol/methanol.
5. Why boiling points of ethers are much lower than those of the isomeric alcohols?
6. How will you distinguish between 1-phenylethanol and 2-phenylethanol. Give reaction for
the test.
7. Write the chemical equation for the preparation of Ethoxybenzene.
(2 marks questions)
8. Why do phenols not give protonation reactions readily?
9. What is 'rectified spirit' and 'absolute alcohol'.
10. (i) Name one reagent which is used for the distinction of primary, secondary and tertiary
alcohols.
(ii) How will you know whether a given OH group is alcoholic or phenolic in nature!
11. How will you synthesise salicylic acid from phenol?
12. Why are Grignard reagents soluble in ether but not in benzene?
13. Describe the 'Kolbe's reaction'.
14. Discuss the electrophillic substitution reactions in aromatic ethers.
(3 marks questions)
15. Why alcohols act both as nucleophiles as well as electrophiles while phenols usually act
as nucleophiles only? Show the reaction for both.
16. Phenols are stronger acid than alcohols. Explain.
17. (i) Sodium metal can be used for drying diethyl ether, but not for an alcohol.
(ii) How will you convert chlorobenzene to picric acid.
___________________________________________________________________________________
Banyan Tree School, Lodhi Road
Summer Holiday Assignment -2015-16
Class :XII
Subject: Computer Science(083)
Instructions:
Following to be submitted on the first day of school after Summer break
a.
Softcopy of the project
b.
Programs for the Program file(Hardcopies)
c.
Answers for Q. 1 to Q. 35( given below) in Foolscap sheets.
______________________________________________________________________________________
Topics for the Programs File:

5 programs from class XI (structure, matrices, recursive function, calculation based prog. etc)

Class & Object – one prog.

Constructor and Destructors-1 prog

Inheritance – 2 progs.

Pointers – 2 prog

File handling – Text file –Menu driven

File Handling – Binary file - Menu driven
______________________________________________________________________________________
Answer the following questions:
Q.1. What do you mean by static variable? Explain with help of example.
Q.2.What is Function Overloading? Give an example in C++ to illustrate the same.
Q.3. Differentiate between object oriented programming and procedural programming
Q.4. What do you understand by Copy constructor? Specify two instances when copy constructor is
invoked?
Q5. Write header file for function given below.
a.
getch ()
b.
sqrt()
c.
strcpy()
d.
exit()
Q.6. When a function is overloaded, there are multiple definitions of the functions. What makes the various definitions
of the function different from each other? Support your answer with suitable example.
Q.7.Write the names of header files to which the following belong.
v.
strcmp( )
vi.
sin( )
Q.8. Answer the question (i) and (ii) after going through the following class
class Exam
{
int year;
public:
Exam(int y ) // Constructor 1
{ year=y);}
Exam(Exam &t) // Constructor 2
};
i) Create an object, such that it invokes Constructor 1.
ii) Write complete definition for Constructor 2.
Q.9. Define a class Test in C+ + with following description:
Private Members
a.
TestCode of type integer
b.
Description of type string
c.
NoCandidate of type integer
d.
CenterReqd (number of centers required) of type integer
e.
A member function CALCNTR( ) to calculate and return the number of centers as
(NoCandidate/100+1)
Public Members
f.
A function SCHEDULE( ) to allow user to enter values for TestCode, Description, NoCandidate &
call function CALCNTR( ) to calculate the number of centres.
g.
A function DISPTEST ( ) to allow user to view the content of all the data members.
Q.10. Assume that a text file named TEXT1.TXT already contains some text written into it, write a function named
vowelwords( ), that reads the file TEXT1.TXT and create a new file named TEXT2.TXT, which shall contain only
those words from the file TEXT1.TXT which doesn’t start with an uppercase vowel(i.e ‘A’,’E’,’I’,’O’,’U’).
For example if the file TEXT1.TXT contains
Carry Umbrella and Overcoat When it Rains
then the file TEXT2.TXT shall contains
Carry When it Rains
Q.11. Given a binary file APPLY.DAT, containing records of the following class Applicant type
class Applicant
{
char A_Rno[10];
char A_Name[30];
int A_Score;
public:
void Enrol( )
{
gets(A_Rno);
gets(A_Name);
cin>>A_Score;
}
void Status( )
{
cout<<setw(20)<<A_Rno;
cout<<setw(20)<<A_Name;
cout<<setw(10)<<A_Score<<endl;
}
int ReturnScore( )
{ return A_Score;}
};
Q.12. Write a function in C++, that would read contents of file APPLY.DAT and display Students whose A_Score is
below 70.
Q.13. Name the header file to which the following belong:
h.
gotoxy()
i.
srand()
Q.14. List the characteristics of constructor and destructors?
Q.15. Answer the questions (i) to (IV) based on the following code:
class CUSTOMER
{
int cust_no;
char cust_name[20];
protected:
void Register( );
public:
CUSTOMER( );
void status( );
};
class SALESMAN
{
int salesman_no;
char salesman_name[20];
protected:
float salary;
public:
SALESMAN( );
void enter( );
void show( );
};
class SHOP: public CUSTOMER, protected SALESMAN
{
char voucher_no[10];
char sales_date[8];
public:
SHOP( );
void sales_entry( );
void sales_detail( );
};
j.
Write the names of data members which are accessible from objects belonging to class
CUSTOMER.
k.
Write the names of all the member functions which are accessible from objects belonging to class
SALESMAN.
l.
Write the names of all the members which are accessible from member functions of class SHOP.
m. How many bytes will be required by an object belonging to class SHOP?
Q16. Write a function to reverse only those lines ends with vowel character from a text file poem.txt.
Q17. Write a function in C++ to update the SUPPLIER NAME for a given SNO from a binary file “SUPP.DAT”,
assuming the binary file is contained the objects of the following class:
class SUPPLIER
{
int SNO;
char SUPP_NAME [20];
public:
int SUPPNO ( ) { return SNO; }
void Enter ( ) { cin >> SNO; gets (SUPP_NAME); }
void Display ( ) { cout << SNO <<SUPP_NAME ; }
};
Q.18.What is the difference between Global Variable and Local Variable? Also, give a suitable C++ code to illustrate
both.
Q.19. What do you understand by Data Encapsulation and Data Hiding? Also, give a suitable C++ code to illustrate
both.
Q.20. Write a function in C++ to count the number of lines present in a text file "STORY.TXT".
Q.21. Given a binary file PHONE.DAT, containing records of the following structure type.
class Phonlist
{
char Name[20] ;
char Address[30] ;
char AreaCode[5] ;
char phoneNo[15] ;
public :
void Register();
void show();
int CheckCode(char AC[ ])
{
return strcmp(Areacode, AC) ;
}
};
Write a function TRANSFER () in C++, that would copy all those records which are having AreaCode as
“DEL” from PHONE.DAT to PHONBACK.DAT.
Q.22. What do you understand by Copy constructor? Specify two instances when copy constructor is invoked?
Q.23. class Test
{ char paper[12];
int marks;
};
Rewrite the above class definition, by defining a default constructor that assign
“computer” to paper and marks to 100.
Q.24. Name the header files, to which following inbuilt function belong to:
i.
log10( )
ii.
arc( )
Q.25. Define a class cricket in C++ with the following description:
Private members:
o
Target_score of type integer
o
Overs_bowled of type integer
o
Extra_time of type integer
o
Penalty of type integer
o
Cal_penalty() a member function to calculate penalty as follows:
If extra_time<=10, penalty=1
If extra_time>10 but <=20 penalty=2, otherwise, penalty=5
Public members:
o
A fuinction Extradata () to allow user to enter values for target_score, over_bowled, Extra_time.
o
A function DspData( ) to allow user to view the contents of all data members.
Q.26. Write a function in C++ which accepts a 2D array of integers and its size as arguments and display the
elements which lie on diagonals.
[Assuming the 2D array to be a square matrix with odd dimension, i.e., 3x3, 5x5, etc..]
Example, if the array contents is
5
4
3
6
7
8
1
2
9
Output through the function should be :
Diagonal One : 5 7 9
Diagonal Two: 3 7 1
Q.27. An array Arr[15][20] is stored in the memory along the row with each element occupying 4 bytes. Find out the
Base Address and address of the element Arr[3][2], if the element [5][2] is stored at the address 1500.
Q.28. Write a function in C++ to print the sum of all the values which are either divisible by 2 or are divisible by 3
present in a two-dimensional array passed as the argument to the function.
Q.29. Write a function in C++ to count the number of alphabets present in a textfile “Para.Txt”.
Q.30. Write a function in C++ to add new objects at the bottom of a binary file “Student.Dat”, assuming the binary file
is containing the object of the following class
class STUD
{
int Rno;
char Name[20];
public:
void Enter ()
{
cin>>Rno;
gets(Name);
}
void Display()
{
cout<<Rno<<Name<<endl;
}};
Q.31. How member functions and non member functions differ?
Q.32. Define a class Taxpayer, whose class description is given below:Private Members:int pan - to store the personal account no.
char name[20] - to store the name
float taxableinc - to store the total annual taxable income.
float tax - to store the tax that is calculated.
computetax ( )- A function to compute tax from the following rule:-
Total Annual Taxable Income
Up to 60000
Greater than 60000, less than = 150000
Above 150000, upto 500000
Above 500000
Rate of Taxation
0%
5%
10%
15%
Public Members :inputdata ( ) - A function to enter the data and call the compute tax( ) function.
display( ) - To display the data.
Q.33. Write a function in C++ which accepts an integer array and its size as arguments / parameters and arrange all
the odd numbers in the first row and even numbers in the second row of a two dimensional array as follows. The
unused cells of two dimensional array must be filled with 0.
If the array is 1, 2, 3, 4, 5, 6
The resultant 2-D array is given below
1
3
5
0
0
0
0
0
0
6
4
2
Q.34. What is the purpose of seekp() and seekg( )
Q.35. Write a function in C++ to transfer a particular type of stock from the file “inventory.dat” to another file
“backinvent.dat”. Assuming that the binary file is containing the records of following structure :
struct Products
{
int id;
char Iname[30];
int type;
};
Remember that transfer means deletion from the “inventory.dat” file and addition in the “backinvent.dat” file. ------------
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Class – XII
BANYAN TREE SCHOOL, LODHI ROAD
Summer Holiday Assignment (2015-2016)
Subject: Economics
Instructions - To be done in Notebook
To be submitted on the first working day after holidays
1. Define opportunity cost with the help of an example, how does it differ from marginal
opportunity cost?
2. Define micro economics and macro economics with the help of an example?
3. Why does an economic problem arise? Explain 3 central problems of an economy with example?
4. Write two characteristics of resources?
5. What do you mean by scarcity?
6. What will be the shape of PPF when MRT is constant and why?
7. Unemployment in India is a subject matter of Microeconomics or Marco economics, give reason?
8. Why is a production possibility curve concave? Explain
9. Explain the law of demand with the help of a schedule?
10. Draw demand curve showing Elasticity of demand:
a. Greater than 1
b.
Equal to 1
c.
Less than 1
11. State the factors affecting individual demand and market demand of a commodity?
12. The quantity demanded of a commodity at price of Rs. 10 per unit in 40 units. Its price elasticity
of demand is (-) 2. Its price falls by Rs. 2 units. Calculate its quantity demand at new price.
13. What is Marginal Rate of Transformation? Explain with the help of an example?
14. An economy always produces on, but not inside a PPC. Defend or refute.
15. What is meant by utility? How is Total utility derived from marginal utilities?
16. Explain Law of Diminishing Marginal Utility with the help of a utility schedule?
17. Define consumer’s equilibrium?
18. What is meant by Marginal Rate of Substitution? Explain why is an indifference curve convex?
19. What is meant by budget set and how it is different from budget line?
20. Define Indifference curve Map?
21. Why does higher indifference curve give more satisfaction?
22. What is the impact of diminishing marginal rate of substitution on the slope of indifference
curve?
23. Define monotonic preference?
24. How market demand schedule is derived with the help of individual demand schedules?
25. How does availability of substitute good affect the elasticity of demand?
26. Demand of good X falls due to increase in the income of the consumer, what is the type of good
X?
27. What will be the impact on demand of the good due to increase in price of:
a. Substitute good
b. Complementary good
28. If the slope of a demand curve is parallel to X-axis, what will be the elasticity of demand?
29. Why is demand of water inelastic?
30. A rise in price of a good results in a decrease in expenditure of it. Is its demand elastic or
inelastic?
31. Define price elasticity of demand?
32. If the number of consumers increases, in which direction will the demand curve shift?
33. Explain the effect of a rise in the prices of related goods on the demand for a good X?
34. A straight line demand curve is given. What will be elasticity of demand on the midpoint of this
curve?
35. Distinguish between
a. Expansion of demand and Increase in demand (with the help of diagram)
b. Contraction of demand and Decrease in demand (with the help of diagram)
c. Change in demand and Change in quantity demanded
36. What will be the effect of following on elasticity of demand:
a. Time factor
b. Nature of the product
37. How does .a proportion of income spent on a good affect elasticity of demand?
38. What will be elasticity of demand if:
a. Total expenditure increases due to increase in price
b. Total expenditure increases due to fall in price.
39. When price of a good is Rs. 7 per unit a consumer buys 12 units. When price falls to Rs. 6 per
unit he spends Rs. 72 on the good. Calculate price elasticity of demand by using the percentage
method. Comment on the likely shape of demand curve based on this measure of elasticity?
40. 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 and Comment on the
likely shape of demand curve on the basis of this measure of elasticity?
41. A consumer buys 20 units of a good at a price of Rs. 5 per unit. He incurs an expenditure of Rs.
120 when he buys 24 units. Calculate price elasticity of demand of the percentage method.
Comment on the likely shape of demand curve based on this information?
42. When the price of a commodity falls by Rs. 2 per unit, its quantity demanded increases by 10
units. Its price elasticity of demand is (-) 1. Calculate its quantity demanded at the price before
change which was Rs. 10 per unit.
43. The price elasticity of demand of a commodity is -0.5. At a price of Rs. 20 per unit, total
expenditure on it is Rs. 2,000. Its price is reduced by 10 percent. Calculate its demand at the
reduced price?
44. State four determinants of price elasticity of demand?
45. Why budget line is negatively sloped?
46. Explain the conditions of consumer’s equilibrium with the help of the indifference curve analysis.
Represent the same in a diagram.
47. Explain the determination of consumer’s equilibrium by using utility approach with the help of a
schedule in case of:
a. Single commodities
b. Two commodities
48. Suppose a consumer wants to consume two goods which are available only in integer units. The
two goods are equally priced at Rs 10 and the consumer income is Rs 40.
a. Write down all the bundles that are available to the consumer.
b. Among the bundles that are available, identify those which cost her exactly Rs. 40.
49. As you add together the identical demand curves of more and more people, the market demand
curve becomes flatter and flatter on the same scale. Thus this fact indicates that the elasticity of
demand is becoming larger and larger?
50. Given Px = Rs 2, Py= Rs 1, Income = Rs 12.
51.
52.
53.
54.
a. Find how a consumer spends her income in order to maximize total utility.
b. Calculate TU receive by the consumer. Show that the equilibrium condition for the
consumer is satisfied.
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 the consumer buy at the new price if the price elasticity of demand is (-) 2?
As a result of 5% fall in price of a good its demand rises by 12 %. Find out elasticity of demand
& say whether demand is elastic or inelastic & why?
What are the factors that causes shift in the budget line? Whether this factor also affects budget
set of the consumer?
What will happen to the budget line when:
a. P₁ increases
b. P₂ increases
c. P₁ decreases
d. P₂ decreases
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Banyan Tree School, Lodhi Road
Summer holiday Assignment -2015-16
Class: XII
Subject: English
Instructions – The following worksheet is to be done in the English notebook
Worksheet needs to be stapled/pasted in the notebook
Complete work to be submitted by 10 July
Factual Description
1. Write a factual description in about 100-125 words of your school auditorium.
2. Write a factual description in about 100-125 words of a sportsperson (any).
3. Write a factual description describing the process of answering an exam, in about 100125 words.
4. This year you watched the Republic Day Parade from an enclosure at the Indian Gate.
Describe the event in about 100-125 words.
Notice
1. Your school has just completed 25 years of its meritorious service to society. The
Students’ Council of your school has decided to celebrate its Silver Jubilee. As the
President of the Council write a notice in not more than 50 words, for the students of your
school, informing them about the Council’s decision and seeking their co-operation for
the success of the proposed Silver Jubilee Celebrations.
2. You are Sanjay / Sangeeta. As President of the Excursion Club, you have organized an
excursion to Shimla during the summer vacation for the senior students of your school.
Write a notice in about 50 words informing the students about the proposed excursion
3. Imagine, you are a member of RED CROSS Blood Bank Society, Bangalore. You have
been asked by the President of the society, Mr. Manish Nair to organize a Blood
Donation Camp. Write a notice in 50 words urging the people to come in large numbers
for this noble cause.
4. Your school, Adarsh Vidyalaya, Solan, is organizing a lecture by the famous writer
Vikram Seth on the occasion of ‘Literacy Week’ being celebrated in your school. Write a
notice informing students about the lecture. Invent necessary details.
Advertisements Hints
1. Draft an advertisement announcing the launch of special health drink by Health Care
Private Ltd., highlighting its nutritive value. Display ad
2. You are working for an advertising agency. Draft an attractive advertisement for the
company called Modern Machines which is launching washing machines. Display ad
3. You have a commercial flat suitable for an office/bank which you wish to rent out. Draft
an advertisement to be published in ‘The Times of India’, New Delhi under the classified
columns. To-let
4. You are Ashok/Ashita of Sitapur, Lucknow. You have got a foreign assignment and
would be going abroad soon. You have a color television set and a refrigerator to sell.
Draft a suitable advertisement to be displayed on the housing society notice board.
Household good for sale/Sale and purchase
5. You have recently constructed a house with all the facilities, in a posh area. You have
decided to sell it out. Draft a suitable advertisement for the column of a local daily.
Invent all the necessary details, including a contact address. Property for sale/ sale and
purchase
Report writing
1. You visited a Job Fair organized by Ability Foundation at Chennai recently. You were
impressed to see that nearly 55 companies from various sectors such as Information
Technology, Telecommunication, and Electronics etc. offered jobs to the final year
students of colleges. As a reporter of ‘The Deccan Times’ Chennai prepare a report in
100 -125 words. You are Piyush/Priya.
2. Keeping in view the frequent occurrence of earthquake in the country, your school
arranged a talk on Disaster Management, indentifying the areas of your state most prone
to earthquakes. The speaker stated the precautionary measures to be taken by the public
and the government in case of emergency. As a student reporter, Ravi/Rani, send a report
of the event, in 100-125 words to a national daily.
3. You witnessed a programme performed by differently-abled persons on Zee TV. You
were very much impressed by their performance and were emotionally touched.
Highlighting their talent, reaction of the judges to their performance etc., prepare a report
in 100 – 125 words for your school magazine. You are Govind/Gayatri.
4. The Readers’ Club of your school visited schools for the less privileged to encourage and
promote reading habits. Besides donating books, the members also distributed books
collected from individuals and organizations. Write a report in 100 – 125 words about
your campaign and its success. You are Anush/Anu, the Club Secretary.
Letters
1. You are Manas/Mansi staying at the Press Apartments of Sunder Nagar, Bihar. The main
road leading to this colony has three man-holes and improper lighting, causing frequent
accidents at night. Write a letter to the Editor of the Times of India drawing attention of
the government to this problem of the residents.
2. You are the Manager of a Fitness Club on Gandhi Road, Jaipur. Write a letter to the
Pioneer Sports Co, New Jaipur, placing an order for a minimum of 4 fitness equipments
with details.
3. The photocopier of your school which is in the guarantee period is not functioning
properly. As the Purchase Manager of ABC Public School, 15th Cross, J.P. Nagar,
Mysore, write a letter of complaint to the manufacturer seeking his/her assistance.
4. You are Jolly of Class XII. You are interested in pursuing a course in animation. You
have seen an advertisement issued by National Institute of Animation, Pune, offering a
course of the same. Write a letter to the Director seeking information about their course,
free structure, placement opportunities etc.
Speech
1. “Water is very precious.” Some scientists even go to the extent of saying that the Third
World War may be fought on the issue of water. Write a speech in 150-200 words
expressing your views to be delivered in the morning assembly in your school.
2. “To use the latest technology the right way, is in the hands of the youth today.” Write a
speech 150-200 words discouraging the misuse of technological products like cell
phones, computers etc and highlighting the need to use them to promote harmony and
goodwill in the society.
3. “Our Good Earth”, an environmental awareness magazine has launched a 'Clean Your
City’ campaign. As an active participant write a speech to be read out in the morning
assembly urging students to participate in the campaign in 150-200 words.
4. As a concerned citizen, you are worried about the harmful effects of the insanitary
conditions in your town. Write a short speech on the necessity of sanitation, to be given
in the morning assembly in your school.
Article
1. Write an article in about 200 words for your school magazine on ‘Films and their
influence on school-going children’. You are Manpreet/Manjula, a student of class XII.
2. In today’s world, letter-writing has lost its charm. People and the youth in particular rely
more on mobiles and computers to communicate. Write an article on the present trend in
about 150 to 200 words. You are Kiran/Kartik.
3. Recently you visited your ancestral home in a village in Gujarat. You were elated and
strongly felt the necessity to hold on to the roots of our modern life, which lie in our
villages. Write an article for your school magazine. You are Chetna/Chirag, Cultural
Secretary of your school.
4. Computer and video games have become popular with children today. Outdoor games
seem to have no place in their life anymore. You are Shakti/Satish. You enjoyed playing
hide-seek with your cousins in a small town. You found it so refreshing that you decide
to write an article on the joys of playing outdoor games for the school magazine. Write it
in about 200 words.