Rich Harvest Public · PDF fileMake an investigatory project on the topic given to ... the...

R.H.P.S HHW XII 2017-18

/12

Rich Harvest Public School Holiday Homework

Session: 2017-18

Class -XII

Note:

The Holiday Homework should be done as per the instructions given by the teachers.

Submit the holiday homework on 3rd July 2017.

ENGLISH

Q1. In order to inculcate reading habits, CBSE has prescribed on Novel named: “The Invisible Man” for

reading project. Students are supposed to read the entire novel and answer the following questions-

a. Describe in brief the appearance of the visitor who came to the, ‘Coach and Horses’, an inn in Iping

village in winter time.

b. What did the people of Iping think about the stranger?

c. Write in brief about the Burglary at the Vicarage(Bunting’s House)

d. Describe the circumstances that led to the unveiling of the identity of the stranger.

e. Describe the Invisible Man’s activities in Iping.

f. Who was Mr. Thomas Marvel? Describe in brief his encounter with the invisible man.

g. How did Mr. Marvel get rid of the Invisible Man?

h. Who was Dr. Kemp? Did he believe in Invisible Man?

i. Who was Dr. Kemp’s visitor? What did he tell Dr. Kemp about himself?

j. What happened at Chesilstowe? How did it change Griffin’s life?

k. On what did Griffin try his experiment? What happened? Did he succeed in his experiment?

l. How did Griffin feel when he became completely invisible? Describe in brief his first experience

with invisibility.

m. Give a brief character sketch of Mr. Griffin.

n. Give a brief character sketch of Dr. Kemp.

o. Give a brief character sketch of Thomas Marvel.

2. Pen down the classified advertisements under the following headings (2 each).

a. Situation Vacant b. Lost and Found c. Sale and Purchase

d. To let e. Vehicle for Sale f. Tour Packages 3. Write an article on the following topics in about 150-200 words:

a) Conscious driving on road is a must


/12

b) Are women safe in contemporary times?

4. Design a poster on “Clean City Campaign”.

5. Letter

Priya/Mohan of 15-A, C.P. Road, New Delhi desires to be a fashion designer. He/She writes to the

Director of the National Institute of Fashion Technology, Banglore, seeking information about their

courses, admission procedure, eligibility criteria, fee structure, placement opportunities etc. Write a letter

in not more than 200 words for the same.

PHYSICS

1. Solve the assignments given to you for the chapters:

Electric charges and fields

Electric potential and capacitance

Electric current

a. Make an investigatory project on the topic given to you. This investigatory project carries 5 marks

for your final board exams. You all need to do a sincere hard work while making it.

b. Complete your activity file as per instructions given to you in class.

c. On a4 sheets write down some questions related to your investigatory project which you think

examiner can ask to you. Write down answers of those questions on separate sheet.

NOTE:

1. Project report must be neat and clean.

2. It must be in your handwriting. Printouts are not allowed.

3. Related pictures and diagrams can be taken as printouts.

CHEMISTRY

1. Solve the assignments given to you from the chapters:

Haloalkanes and haloarenes

Alcohols, phenols and ethers

a. Make an investigatory project on the topic given to you. This investigatory project carries 5 marks

for your final board exams. You all need to do a sincere hard work while making it.

b. Complete your activity file as per instructions given to you in class.

c. On a4 sheets write down some questions related to your investigatory project which you think

examiner can ask to you. Write down answers of those questions on separate sheet.

NOTE:

1. Project report must be neat and clean.

2. It must be in your handwriting. Printouts are not allowed.

3. Related pictures and diagrams can be taken as printouts.


/12

MATHEMATICS

2

3 , 2

7. The function f(x) 4 , 2 is continuous function for all x R ,

2 , 2

find .

3 5, if 28. Examine the continuity f(x) at 2.

, if 2

9. Discuss the c

x x

x

x x

x xx

x x

2

ontinuity of the following functions.

4 if 4

( ) f(x) at 4.2( 4)

0 if 4

1 cos 2 if 0

( ) f(x) at 0.

5 if 0

xx

i xx

x

xx

ii xx

x

if 0( ) f(x) at 0.

2 if 0

sin 2 if 0

3( ) f(x) at 0.

3 if 0

2

2x-1 if 0( ) f(x) at 0.

2x+1 if 0

x xx

iii xx

x

xx

xiv x

x

xv x

x


/12

1sin , for

( ) f(x) at .

0 , for

x a x axiii x ax a

x a


/12

2

2

2 16 , if 2

( ) f(x) at 24 16

, if 2

3 5 , if 0 2( ) f(x) where [0,3].

1 3 , if 2 3

1x sin , if 0

( ) f(x) is de

0 , if 0

x

x

p

xvi x

k x

x kx xvii x

x x

xviii x

x

3 2

2

rivable at 0.

16 20 , if 2

( ) f(x) at 2.( 2)

, if 2

x

x x xx

ix xx

k x


/12

1 1

2

1

2 2 1

1 2 119. If tan 2 tan , find .

2 1

120. If sin 2 tan , find .

1

21. Differentiate w.r.t. x

( ) ( ) log tan ( ) log ( ) tan4 2

x

x dyy

x x dx

x dyy

x dx

xi e ii iii x a x iv

2

2 2

2 2

22 2

2

2.

1

22. If 5 5 5 then show that 5 0.

23. If , prove that .

124. Prove that , if 1 1

1

x y x y y x

n

x

x

dy

dx

dy nyy x a x

dx a x

dy yx y y x a

dx x


/12

2

2 2

2

2

125. If 1 1 ( ), show that .

1

26. If (x+y) , then prove that .

127. If , prove that (1 ) 0

1

m n m n

ydyx y a x y

dx x

dy yx y

dx x

x dyy x y

x dx


/12

11

21

1

1

2 .341. Differentiate w.r.t. x, sin .

1 36

2 3 142. If y cos , find .

13

1 143. If y tan , find .

1 1

1 sin 1 sin44. If y cot ,

1 sin 1 sin

x x

x

x x dy

dx

x x dy

dxx x

x x

x x

1

find .

145. Differentiate w.r.t. x, cot .

1

dy

dx

x

x

BIOLOGY

Prepare the Investigatory Project on following topics (choose any 1)

Introduction: These are small projects to be performed to cultivate Scientific Attitude in Students and to

awaken interest towards Scientific applications in today's world.

Instructions: Collect all the Information available on the Topic from all the sources possible. Make use of

Graphs, Histograms, Pictures, Diagrams, Pie charts etc. wherever needed. Do a Case Study if possible.

Mention the list of Sources of Information from where Data is Collected. Present the Project Report in

best possible manner. Preferably Handwritten than Printed. All the Best!!!

1. A study on HIV AIDS - Talk about the disease, the Virus - go in details, include a case study.

2. How Hair Colours and Dyes affect your hair- conduct experiments on how different hair colours and

dyes affect hair. Point out the difference between Ammonia included and Ammonia free hair dyes.

3. Cigarettes are harmful - Do tests on various Tobacco products and list out their harmful effects. Do a

case Study.

4. Pulmonary Tuberculosis- Explain the Disease. Do a case study.

5. Blood- Explain the different components in detail. Pick a disease related to it and do a Case study.

6. Tea leaves / Coffee addiction - Explain how tea leaves / coffee beans cause addiction and their effects.

Do a filter test? If possible, do a case study.

7. DNA Fragments used in Forensics - Explain how DNA fragments help solving crime. Do a case study.

8. Effects of Diet on blood glucose levels. Explain how a diet rich in carbohydrates affects blood glucose

levels. Do a case study if possible.

9. Do the Left and Right Ears hear the Sound differently? Try collecting information about abilitity of

right and left ear to hear the notes.

10. Malnutrition in India. Explain the Reasons why part of the Indian population is suffering from

Malnutrition. Regions affected, Steps being taken etc.

11. Organic Farming in India. Search the regions where Organic Farming is done, How it is done, etc.

Explain in detail about any 1 region in India.

12. Chemical fertilizers and Manures used in today's Farming. What are the new types of fertilizers being

used.


/12

COMPUTER Q.1 Define macro with suitable example? Q.2 What is OO Paradigm? How is it different from Procedural Programming Paradigm? Q.3 What is polymorphism? Give an example in C++ to show how it is implemented? Q.4 What is inheritance? Give an example in C++ to show how it is implemented? Q.5 What are the advantages of OOP over traditional programming approach? Q.6 What are the disadvantages of using OOP? Q.7 What is concept of simplifying a real worlds concept into essential elements called in OOP? Explain this feature? Q.8 Differentiate between data abstraction and data hiding? Q.9 What is the difference between #define and const ? Explain with example? Q.10 What is the purpose of using type def command in C++? Q.11 What is the difference between call by value and call by reference? Q.12 What is the difference between actual and formal parameter? Give an example to illustrate this? Q.13 What is function overloading? Give an example in C++ to show how it is implemented? Q.14 What is the difference between automatic type conversion and type casting and call by reference? Q.15 What do you mean by data encapsulation and data hiding? Give an example in C++ to illustrate? Q.16 What is the difference between local and global variable? Give an example to illustrate this? Q.17 What is the benefit of using function prototype for a function? Give an illustration in C++? Q.18 What is the benefit of using default parameter/argument for a function? Give an illustration in C++? Q.19 What are the correct identifiers out of the following? While , for , Float , new , 2ndName, A%B , Amount2 , _Counter , Add+Subtract , typedef Q.20 Name the header files for the following built in functions? frexp(), toupper(),getc(),setw(),isdigit(),scanf(),getchar(),getxy(),puts(),isalnum(),fabs() Q.21 Which C++ header file(s) are essentially required to be included to run/execute the following C++ code : void main() { char *word1="Hello",*word2="Friends"; strcat(word1,word2); cout<<word1; } Q.22 Rewrite the following program after removing the syntactical errors (if any). Underline each correction. #include<conio.h> #include<iostream.h> #include<string.h> #include<stdio.h> class product { int product_code,qty,price; char name[20]; public: product(){


/12

product_code=0;qty=0;price=0; name=NULL; } void entry() { cout<<"\n Enter code,qty,price"; cin>>product_code>>qty>>price; gets(name); } void tot_price() {return qty*price;} }; void main() { p product; p.entry(); cout<<tot_price(); } Q.23 Write the output of the following C++ program code: Note: Assume all required header files are already being included in the program. void change(int *s) { for(int i=0;i<4;i++) { if(*s<40) { if(*s%2==0) *s=*s+10; else *s=*s+11; } else { if(*s%2==0) *s=*s-10; else *s=*s-11; } cout<<*s<<" "; s++; } } void main() { int score[]={25,60,35,53}; change(score); }


/12

Q.24 Write the output of the following C++ program code: Note: Assume all required header files are already being included in the program. class seminar { char topic[30]; int charges; public: seminar() { strcpy(topic,"Registration"); charges=5000; } seminar(char t[]) { strcpy(topic,t); charges=5000; } seminar(int c) { strcpy(topic,"Registration with Discount"); charges=5000-c; } void regis(char t[],int c) { strcpy(topic,t); charges=charges+c; } void regis(int c=2000) { charges=charges+c; } void subject(char t[],int c) { strcpy(topic,t); charges=charges+c; } void show() { cout<<topic<<"@"<<charges<<endl; } }; void main() { seminar s1,s2(1000),s3("Genetic Mutation"),s4; s1.show(); s2.show();


/12

s1.subject("ICT",2000); s1.show(); s2.regis("Cyber Crime",2500); s2.show(); s3.regis(); s3.show(); s4=s2; s4.show(); getch(); } (f) Observe the following program carefully and attempt the given questions: #include<iostream.h> #include<conio.h> #include<stdlib.h> void main() { clrscr(); randomize(); char courses[][10]={"M.Tech","MCA","MBA","B.Tech"}; int ch; for(int i=1;i<=3;i++) { ch=random(i)+1; cout<<courses[ch]<<"\t"; } getch(); } I. Out of all the four courses stored in the variable courses, which course will never be displayed in the output and which course will always be displayed at first in the output? II. Mention the minimum and the maximum value assigned to the variable ch?

Rich Harvest Public · PDF fileMake an investigatory project on the topic given to ... the...

Documents

Transcript of Rich Harvest Public · PDF fileMake an investigatory project on the topic given to ... the...