Science (English Medium) Class 11 - CBSE Question Bank Solutions for Computer Science (Python)

Following is an algorithm to classify numbers as “Single Digit”, “Double Digit” or “Big”.

Classify_Numbers_Algo
INPUT Number
IF Number < 9
             "Single Digit"
Else If Number < 99
             "Double Digit"
Else
             "Big"

Verify for (5, 9, 47, 99, 100, 200) and correct the algorithm if required.

For some calculations, we want an algorithm that accepts only positive integers up to 100.

Accept_1 to 100_Algo
INPUT Number
IF (0 <= Number) AND (Number <= 100)
       ACCEPT
Else
       REJECT

1. On what values will this algorithm fail?
2. Can you improve the algorithm?

Write the corresponding Python assignment statement:

Assign 10 to variable length and 20 to variable breadth.

Write the corresponding Python assignment statement:

Assign the average of values of the variable's length and breadth to a variable sum.

Write the corresponding Python assignment statement:

Assign a list containing strings ‘Paper’, ‘Gel Pen’, and ‘Eraser’ to variable stationery.

Write a program to swap two numbers using a third variable.

Write a program to swap two numbers without using a third variable.

Give the output of the following when num1 = 4, num2 = 3, num3 = 2.

num1 = float(10)
print (num1)

Observe the following program carefully, and identify the error:

mynum = 9
def add9():
       mynum = mynum + 9
       print mynum
add9()                          #function call

Using an example showing how a function in Python can return multiple values.

Differentiate between the following with the help of an example:

Global and Local variable

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operation:

print(mySubject.isalpha())

Consider the following string myAddress:

myAddress = "WZ-1, New Ganga Nagar, New Delhi"

What will be the output of the following string operation:

print(myAddress.count('New'))

Consider the following string myAddress:

myAddress = "WZ-1, New Ganga Nagar, New Delhi"

What will be the output of the following string operation:

print(myAddress.find('New'))

Consider the following string myAddress:

myAddress = "WZ-1, New Ganga Nagar, New Delhi"

What will be the output of the following string operation:

print(myAddress.rfind('New'))

Consider the following string myAddress:

myAddress = "WZ-1, New Ganga Nagar, New Delhi"

What will be the output of the following string operation:

print(myAddress.split(','))

Consider the following string myAddress:

myAddress = "WZ-1, New Ganga Nagar, New Delhi"

What will be the output of the following string operation:

print(myAddress.split(' '))

Consider the following string myAddress:

myAddress = "WZ-1, New Ganga Nagar, New Delhi"

What will be the output of the following string operation:

print(myAddress.partition(','))

Write a user-defined function to convert a string with more than one word into a title case string where the string is passed as a parameter. (Title case means that the first letter of each word is capitalized).

After a fight with your friend, you did the following activities. Which of these activities is not an example of cyber bullying?