set 4 MCQ Questions & Answers Detailed Explanation

Question : 1

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 : 2

The nature of radiation of light is

a) Like both of wave and particle

b) Like particle

c) Like wave

d) Like neither of wave nor of particle

Question : 3

A bimetallic strip consists of brass and iron. When it is heated it bends into an arc with brass on the convex and iron on the concave side of the arc. This happens because

a) it is easier to bend an iron strip than a brass strip of the same size

b) brass has a higher specific heat capacity than iron

c) density of brass is more than that of iron

d) brass has a higher coefficient of linear expansion than iron

Question : 4

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 : 5

_____ is the characteristic of a musical sound by which a loud sound can be distinguished from a faint sound even though both have the same pitch.

a) Quality

b) Loundness

c) Pitch

d) None of these

Question : 6

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