class 12 science stream summer vacation homework

Class XII BIO
1.Select the investigatory project as per your choice from the practical book and complete it.
2.Practical Record to be completed.
3.Prepare a working model on any of the the following topics: (i)Sustenance of Agriculture (ii)Food &
Safety (iii)Health (iv)Swach Bharat
4.Complete Q-Ans of first three lessons in HW copy.
5.Collect 2017 March board QP and solve.
Informatics Practices HHW May 2017
A.
Prepare ch 1 and 2 for periodic test after vacations.
B.
1.
What will be the content of jTextField1 after executing the following code:
int Num = 6;
Num = Num + 1;
if ( Num > 5)
jTextField1.setText(Integer.toString(Num));
else
jTextField1.setText(Integer.toString(Num+5));
2
. What will be the corresponding outputs of the following code segment if the
possible inputs in the jTextField1 are:
(i) 10 (ii) 20 (iii) 30 (iv) 40 (v) 50
String str = jTextField1.getText();
Number = Integer.parseInt(str);
Switch (Number)
{
case 10:jTextField1.setText("Ten Thousand");break;
case 20:jTextField1.setText ("Twenty Thousand");
case 30:jTextField1.setText ("Thirty Thousand"); break;
case 40:jTextField1.setText ("Forty Thousand");
default:jTextField1.setText ("Not enough!!!");
}
3.
Find the output of the following code:
int First = 7;
int Second = 73;
First++;
if (First+Second > 90)
jlabel1.setText("value is 90 ");
else
jlabel1.setText("value is not 90 ");
int Number1 = 7,Number2=8;
int Second = 73;
if (Number1>0 || Number2>5)
if (Number1>7)
jTextField1.setText("Code Worked");
else
jTextField1.setText("Code MightWork");
else
jTextField1.setText("Code will not Work");
4.
What is the main difference between a combo box and a list box?
5.
How many times will the following loop get executed?
x = 5;
y = 36;
while ( x <= y)
{
x+=6;
}
6.
What will be the content of the jTextArea1 after executing the following code?
int Num = 1;
do
{
jTextArea1.setText(Integer.toString(++Num) + "\n");
Num = Num + 1;
}while(Num<=10)
7.
Design GUI applications for the following:
1. Develop an application to take input from user in a radio button out of the two
referring to Area or Perimeter of a circle. Print the Area or Perimeter in a TextField
for the value of Radius entered in another TextField.
2. Develop an application to take an input in TextField for a number. If the number is
even then Display its square otherwise its cube in a MessageBox.
3. Develop an application to calculate area of a circle, a rectangle or a triangle
depending upon the user's choice (from a set of Radio Buttons). Accept the desired
input Radius OR Length-Bredth OR Side as per the option selected by the user.
4. An electronic shop has announced the following seasonal discounts on the
purchase of certain items
0-25000 5% 10%
25001-50000 10% 20%
More than 50000 15% 30%
Develop an application based on the above criteria, to input amount of purchase and the
type of purchase ( TV or Music System using JRadioButton) by a customer.
Compute and print the net amount to be paid by a customer along with his name
accepted in a text field.
[Hint: Discount = ( Discount rate / 100) * Amount of purchase
Net amount = amount of purchase - discount).]
5. Define a GUI application to create a list box ClassName with the following values.
XII A
XII B
XII C
XII D
Write a program to print the names of the class teacher according to the class
selected based on the following information
XII A Purnima singh
XII B Suruchi Oberoi
XII C Manjula
XII D Anita Misra
6. Design a GUI application as shown below: On selecting the radio button and
clicking the Set Alignment button the alignment of the text on the button gets
changed to Left, Right or Centre
Class XII A & B PHYSICS
1. Select the investigatory projects as per your choice given in the practical book and
complete the project.
2. Practical records to be completed in all respect assigned to students.
3. Prepare any working model based on your investigatory project.
4. Complete textbook questions of chapter- Electrostatic potential and capacitance.
HOLIDAY HOMEWORK [CLASS XII] 2017-18
READING SECTION
From CBSE PREVIOUS YEAR PAPER (2014 )
1. Unseen passage 1 (Delhi & outside Delhi)
2. Unseen passage 2 (Foreign set)
3. Note Making & Summary (Foreign set) “outcasts….”
WRITING SECTION
1. Digital India Drive/Necessity of Digitization (Article or Speech)
2. Poster-any 3 from CBSE Previous year question papers.
LITERATURE SECTION
EXTENSIVE READING OF THE ENTIRE NOVEL.
1. QUESTIONS FROM THE NOVEL
a) Write a brief character sketch of Griffin, the Invisible Man.
b) Write a brief character sketch of Mr Kemp.
C) “’Tas Speritas” –who said this &why. Describe the event that
made the speaker say this.
2. Question from ‘’The Tiger King’’
a) NCERT QUESTIONS FROM THE TEXT BOOK
b) “In this manner the hundredth tiger took its final revenge upon the
Tiger King”-Comment on this statement with reference to the story. [6]
c) ‘The death of the Tiger King is a sheer anti-climax’-Elaborate and
explain in reference to the story. [6]
d) How did the king endanger his throne? How did he save it? [3+3=6]
e) What happened to the 100th tiger brought by the Dewan? [3]
f) What was the prediction about the tiger king?
g) How was the tiger king brought up?
h) “From that day onwards it was celebration time for all the tigers
inhabiting Pratibandapuram”- What is ironical about this comment of
the author?
3. The Enemy EXTENSIVE READING OF THE ENTIRE STORY
QUESTIONS
a) NCERT QUESTIONS OF THE TEXT [excluding Q. 7&8]
b) ‘He had an unusual sense of humour’- Elaborate
c) How did Hanna help Sadao during the operation?
d) Describe the prisoner as first seen by Sadao & Hanna.
e) Why did Sadao grow ‘impatient & irritable’ during the operation?
f) Why did Yumi refuse to wash the Soldier? Was she justified in
doing so?
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