set 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Match the Column - I and Column - II

a) A-Q; B-P; C-T; D-R; E-S

b) A-Q; B-P; C-T; D-S; E-R

c) A-P; B-Q; C-T; D-R; E-S

d) A-Q; B-T; C-P; D-R; E-S

Question : 2

Assertion (A):
Reveraberation mainly feels in large churches and in other large buildings.
Reason (R):
The walls, roof and ground may cause multiple sound reflections.
Code

a) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

b) (A) is true, but (R) is false

c) Both (A) and (R) are true and (R) is the correct explanation of (A)

d) (A) is false, but (R) is true

Question : 3

The correct order of colours in a rainbow is

a) Blue, yellow, green

b) Violet, green, blue

c) Blue, green, violet

d) Blue, green, yellow

Question : 4

The minimum height of a plane mirror to see the full size image of a person is equal to

a) One-fourth the height of the person

b) Half the height of the person

c) The height of the person

d) Double the height of the person

Question : 5

Light is made of seven colours. What is the method of separating the colours?

a) The colours can be separated by plants

b) The colours can be separated by a filter

c) The colours can be separated by a prism

d) The colours cannot be separated

Question : 6

When water is heated from 0°C to 20°C, how does its volume change?

a) It shall decrease

b) It shall increase

c) It shall first increase and then decrease

d) It shall first decrease and then increase