Page 158 - Computer Science V2.0 Class 11

10. Write the escape sequences for the following:
a. Horizontal tab
b. Newline
Ans. a. \t b) \n
11. What will be the output produced on execution of each of the following instructions in Python shell:
a. >>> print('We all like \n to play')
b. >>> print('Tomorrow is a \t holiday')
c. >>> Print('Tomorrow is a \t holiday')
Ans. a. We all like
to play
b. Tomorrow is a holiday
c. NameError: name 'Print' is not defined.
12. Give output produced on execution of each of the following:
a. print('Sun','Mon','Tue', end='@@@')
b. print('Jan','Feb','Mar',sep='-', end='#Quarter#')
Ans. a. Sun Mon Tue@@@
b. Jan-Feb-Mar#Quarter#
13. Write Python statements (to be executed in IDLE environment) to accept the first name and last name of a person and print
them in one line, separated by a space:
Ans. >>> fName = input('Enter your first name :')
>>> lName = input('Enter your last name :')
>>> print(fName, lName)
14. Write Python statements (to be executed in IDLE environment) to accept the first name and last name of a person and print
them in one line, separated by ***.
Ans. >>> fName = input('Enter your first name :')
>>> lName = input('Enter your last name :')
>>> print(fName, lName, sep='***')
15. Write a program to accept the radius of a circle and print its circumference.

Ans. #Objective: To compute circumference of a circle.
#User input: Radius of a circle.
#Output: Circumference of a circle, having a given radius
pi = 3.14
radius = int(input('Enter the radius of a circle : '))
circumference = 2 * pi * radius
print('radius:', radius, 'circumference:', circumference)

Assertion and Reasoning Based Questions

The following questions are Assertion(A) and Reasoning(R) based questions. Mark the correct choice as
a. Both A and R are true and R is the correct explanation of A
b. Both A and R are true and R is not the correct explanation of A
c. A is true but R is false
d. A is false but R is true

1. Assertion (A): myMarks is an identifier.
Reasoning (R): An identifier begins with a letter or underscore character, followed by a sequence of letters and digits.

144 Touchpad Computer Science (Ver. 2.0)-XI