Kendriya Vidyalaya No-2 Salt Lake, Kolkata
Summer Vacation Holiday Homework
Session- 2015-16
Kindly Press Ctrl+Click on respective class name to move directly on the respective class FOR SUMMER VACATION HOMEWORK
Class Name
XII A
XII B
XII C
XII D
Home Work Class XII A
TERM-I (COMMON ASSIGNMENT ) ,CLASS-XII , SUBJECT-MATHEMATICS
1.What is the range of the function f(x)=
2.If f:R R be defined by f(x) = ,then find (fof)(x) .
3.Show that the relation S in the set A = { X Z: 0 X 12 } , given by S = { (a,b) : a,b Z ,|a b | is divisible by 4 } is an equivalence relation .
4.Let * be a binary operation on Q ,defined by a*b = .Show that * is commutative as well as associative . Also find the identity element ,if it exists .
5.Let f : R R ,be defined as f(x) = 10x + 7 . Find the function g :R R ,such that gof =fog = .
6. Let A = R - {3 } and B = R - {1 } .Consider the function f : A B , defined by f(x) = . Show that f is one-one and onto and hence find .
7.Show that f : N N ,given by f(x) = x+1,if x is odd , is both one one and onto .
X 1,if x is even
8.Find the value of + (sin( )) .
9.Simplify ( + sinx) , x [-
10. Find x , if ( ) + ( ) =
11.Prove that ( ) + ( ) = ( )
12.Prove that ( ) + ( ) + ( ) =
13.If x + y + z = , then prove that + + +2xyz = 1
14. Prove that 1 + 2 + 3 = .
15. Prove that sin (2 ) + cos (22 ) =
16. Prove that ( ) +( ) + ( ) =
17.Solve for x : ( ) + ( ) = , 0 x 1.
18. Solve for x: (x 1) + x + (x + 1) = (3x)
Class XII A(Computer Science):
Assignment
Chapter : C++ revision tour
Very short/short answer question (Page no:89)- Question no-19 to 40
Chapter: Class and object:
Unsolved Problem: (Page no- 194)Question no 1 to 4
Long answer question: (Page no-199) Question no-2 to 8
Project
(Any one project in a group of 2 or alone)
1. Library Management System
2. Banking System
3. Hospital Management System
4. Railway Reservation System
5. Inventory control program
6. Examination System
7. Quiz
8. Game
9. Hotel Management
10. Any subsystem of a System Software or Tool
11. Any Scientific or a fairly complex algorithmic situation
12. Transport query system
13. Tutor, Computer Aided Learning Systems
( Or any other domains on the similar lines)
HOLIDAY HOME WORK, ChemistryCLASS:-12A, 2015
Q1.] Define the term solution. How many types of solution are formed? Write briefly about each type with example.
Q2.] Give an example of a solid solution in which the solute is a gas.
Q3.] Define the following terms:
Mole fraction
Molality
Molarity
Mass percentage
Q4.] State Henrys law and mention its two important applications.
Q5.] What is Raoults law? State the factor responsible for deviations from this law. Illustrate deviations with suitable examples.
Q6.] What are ideal and non-ideal solutions? Give reasons for the formation of such solution. Give one example in each case.
Q7.] Define the term osmosis and osmotic pressure. Is the osmotic pressure of solution a colligative property? Explain.
Q8.] Calculate the molarity of a solution containing 5g of NaOH in 450ml solution.
Q9.] Calculate the amount of benzoic acid (C6 H5 COOH) required for preparing 250ml of 0.15M solution in methanol.
Q10.] A solution is obtained by mixing 300g of 25% solution and 400g of 40% solution by mass. Calculate the mass percentage of the resulting solution.
1.} Study of oxalate ion content in Guava Fruit
2.} Preparation of Soyabean Milk and its comparison with Natural Milk
3.} Study of Adultrants in Food-Stuffs
4.} Dyeing of Fabrics
5.} Study of constituents of an Alloy
6.} Study of the effect of Metal Coupling on The Rusting of Iron
Subject: English
Find at least 6-10 classified advertisements of different categories from the Newspaper. Paste the advertisements on the left side of the Holiday Homework copy. Then in your own words write down the same advertisements on the right side of the copy.
2. As a librarian of DAV school Delhi, write a letter to the Oxford book sellers, Agra placing an order for books, [mention at least four titles] to be supplied immediately.
Name of Book
Name of Author
Publication House
No. of Copies
1.
2.
3.
4.
3. The harmful Effects of Cigarette Smoking is known to all. It is prevented by the government of India by taking a few steps. A statutory warning on cigarette packs is a mandate from the Government side. In spite of that the cigarette sale is increasing day by day. Write a letter to the Editor giving your own views about the factors responsible for the increase in sale every day.
Optional
Book Review on The Invisible Manby H.G Wells
i) Title
ii)Author
iii) Publishing Company
iv) Price
iv) No. of Pages
v) Hard bound/ Paper back
vi) Summary &Characterisation
vii) Why do you like or dislike the book
Home Work Class XII B
Investigatory Project of 2015-16 (AISSCE)Class- XII B, Biology
ROLL NO.
NAME
TOPIC
1
Rituparna Nayak
Preference of colour according to age group.
2
Pradipta Ghosh
Toxicity of Nicotine and its effect
3
Neha Kumari
Inheritence / Occurrence of spectacles in Children
4
Saloni Roy
Reasons for hair fall
5
Kaveri Saha
Movement of tectonic plates through ages
6
Arya Sharma
Study of Tsunami from last 25 years
7
Rachna Gopi
Lifestyle diseases and their reversal
8
Sanjula Biswas
Benefits of exercise on our health
9
Sahil Purkait
Adulteration of food items
10
Robin Singh
Effect of Music before sleeping
11
Sudeep Jha
Inheritance and causes of hypertension
12
C.S. Samrat
Effects of Yoga for different problems
13
Ashirwad Das
Switch to Stevia : A Boon for Diabetics
14
Pritam Das
Types of dreams and their interpretation
15
Shubhojit Gupta
Onset and inheritance of diabetes
16
Simran Sahu
17
Shibani Mandi
Impact of use of Internet in students
18
Gargi Dixit
Sub-Disciplines of Biology and related professions
19
M. Vyshnavi
Onset / Causes of Early puberty
20
Pranali Borkar
Studying Science by force or by choice
21
Sneha Mathew
Sleeping habit in human beings
22
Tohfah Nazir
Complications of pregnancies.
23
Saurav Pradhan
Effects of mobile phones and computers
24
Soumyadeepta Roy
Wild heritage of Sunderban Tigers
25
Bhargav Chakraborty
Significance of medicinal plants in human being
26
Devaleena Rana
Age vs learning ability.
27
28
Snigdha Dey
Occurrence of Diabetes mellitus
29
30
Srusti Sisugoswami
Life history of gangetic Dolphins
31
Dharitree Swain
Effects of Rice eating habits on human
32
Mrittunjoy Adhikari
Harmful effects of Junk food
Home work List of practicals have been given to you. Write the theory portion in your practical record files and draw the labelled diagrams wherever indicated and as explained in the class.
Assignment- Revise the 5 marks questions of last 7 years upto the portion completed in class.
TERM-I (COMMON ASSIGNMENT ) ,CLASS-XII , SUBJECT-MATHEMATICS
1.What is the range of the function f(x)=
2.If f:R R be defined by f(x) = ,then find (fof)(x) .
3.Show that the relation S in the set A = { X Z: 0 X 12 } , given by S = { (a,b) : a,b Z ,|a b | is divisible by 4 } is an equivalence relation .
4.Let * be a binary operation on Q ,defined by a*b = .Show that * is commutative as well as associative . Also find the identity element ,if it exists .
5.Let f : R R ,be defined as f(x) = 10x + 7 . Find the function g :R R ,such that gof =fog = .
6. Let A = R - {3 } and B = R - {1 } .Consider the function f : A B , defined by f(x) = . Show that f is one-one and onto and hence find .
7.Show that f : N N ,given by f(x) = x+1,if x is odd , is both one one and onto .
X 1,if x is even
8.Find the value of + (sin( )) .
9.Simplify ( + sinx) , x [-
10. Find x , if ( ) + ( ) =
11.Prove that ( ) + ( ) = ( )
12.Prove that ( ) + ( )
