Computer Science - Informatics Practices Class XI/XII Python List Solved Test  Part 4

Q1. What do you mean by traversing a list?

Q2. Write a program to print all the elements of given list using for loop.

A = [‘a’,’b’,’c’,’d’,’e’]

Q3. List in python are mutable.(T/F)

Q4. Write the output of the following:

             

Q5. Write the output of the following:

S.No.	Code	Output
1	[1,2,3,4] == [4,3,2,1]
2	[1,2,3,4] >  [4]
3	[1,2,3,4] != [1,2,3,4]
4	[1,2,3,4] == [1,2,[3,4]]
5	[1,2,3] == [1.0,2.0,3.0]
6
7
8
9
10
11
12
13
14
15	>>>   a >>>   len(a)

 

 

Q6. What do you mean by concatenation in list? Explain

    with example.

Q7. Which mathematical operator is used to concatenate

    the list?

Q8. Which mathematical operator is used to replicate

    the list?

Q9. Write the output of the following:

>>> a= “python”

>>> b=list(a)

>>> b*2

>>> b+b

>>> a+a

Q10. Can we multiply two list?

 

 

 

 

 

 

Solutions:

Ans 1: Traversing means to access each element of list

Ans 2.

        

Ans 3. True

Ans 4.

[1,2,3,4]

[1,2,3,4]

[a,2,3,4]

[a,2,3,4]

Ans 5.

S.No.	Code	Output
1	[1,2,3,4] == [4,3,2,1]	False
2	[1,2,3,4] >  [4]	False
3	[1,2,3,4] != [1,2,3,4]	False
4	[1,2,3,4] == [1,2,[3,4]]	False
5	[1,2,3] == [1.0,2.0,3.0]	True
6		[1,2,3,4,5,6,7,8]
7		[1,2,3,4]
8		[1,2,3,4]
9		([1,2,3,4],[5,6,7,8])
10		Error
11		[1,2,3,4,5,6,7,8]
12		Error
13		[1,2,3,4,5]
14		[1,2,3,4,1,2,3,4]
15	>>>   a >>>   len(a)	[1,2,3,4,1,2,3,4] [1,2,3,4] 4

 

Ans 6. Concatenation of list means combining the two

       list. For example :

>>>a = [1,2,3,4]

>>>b = [5,6,7,8]

>>> a+b

Ans 7. ‘+’ operator

Ans 8. ‘*’ operator

Ans 9. ['p', 'y', 't', 'h', 'o', 'n', 'p', 'y', 't', 'h', 'o', 'n']

          ['p', 'y', 't', 'h', 'o', 'n', 'p', 'y', 't', 'h', 'o', 'n']

       'pythonpython'

Ans 10. NO