universe & solar system section 12 MCQ Questions & Answers Detailed Explanation

Question : 1

How much is the mass of the moon when compared with that of the earth ?

a) 1/51

b) 1/8

c) 1/81

d) 1/49

Question : 2

The scientist who first discovered that the Earth revolves round the Sun was

a) Copernicus

b) Einstein

c) Dalton

d) Newton

Question : 3

A ball thrown outside from an artificial satellite revolving round the Earth will

a) Fall on the Earth

b) Revolve round the Earth in the same orbit with the same time period as satellite

c) Go to the Moon

d) Go to the Sun

Question : 4

On which date is India likely to experience the shortest day?

a) June 22

b) September 23

c) March 21

d) December 22

Question : 5

In the following diagram, an eclipse is represented. Which statement is correct about it ?

a) The diagram represents a lunar eclipse, A is the earth and B is the moon

b) The diagram represents a total solar eclipse

c) The diagram represents a solar eclipse, A is the earth and B is the moon

d) The diagram represents a lunar eclipse, A is the moon and B is the earth

Question : 6

Which planet takes the longest time to go around the sun?

a) Uranus

b) Neptune

c) Jupiter

d) Earth