set 11 MCQ Questions & Answers Detailed Explanation

Question : 1

An endoscope is a

a) Simple microscope

b) Type of camera

c) Narrow telescope

d) None of the above

Question : 2

Match Column-I with Column-II :

a) A – 2 ; B – 4 ; C – 1 ; D – 3

b) A – 2 ; B – 3 ; C – 4 ; D – 1

c) A – 1 ; B – 2 ; C – 3 ; D – 4

d) A – 2 ; B – 3 ; C – 1 ; D – 4

Question : 3

Rainbow is caused due to

a) interference of light

b) reflection of sun light from air particles

c) dispersion of sun light from water drops

d) diffraction of sun rays from water drops

Question : 4

Which of the following statements is incorrect regarding the time period of a simple pendulum oscillating with small amplitude? The time period of the pendulum

a) does not depend upon the amplitude

b) is inversely proportional to $√g$

c) is directly proportional to $√l$

d) depends upon its mass, material and shape

Question : 5

A glass bottle containing water tightly corked breaks when it is kep in freeze, because

a) The volume of water decreases on freezing

b) The volume of water increases on freezing

c) Bottle shrinks on freezing

d) Glass is the bad conductor of heat

Question : 6

A ray of light travels from medium I to medium II. The figure given shows the variation of sin of angles of incidence (sin i) in medium I with sin of angle of refraction (sin r) in medium II.

1. Speed of light in medium I > Speed of light in medium II.
2. Speed of light in medium I < Speed of light in medium II.
3. Light travels from denser medium to rarer medium.

a) 1 and 3

b) 1 only

c) 2 only

d) 2 and 3