universe & solar system section 5 MCQ Questions & Answers Detailed Explanation

Question : 1

Day and Night are equal at the:

a) Poles

b) Eqator

c) Antarctic

d) Prime Meridian

Question : 2

If the distance between Sun and Earth is reduced by quarter to present distance, then probability of which one will increase

a) The duration of our year will be decrease

b) Earth will fly into space

c) Earth shall be burned

d) Earth would fall into Sun

Question : 3

Earth’s axis is tilted at an angle of

a) 33½ º

b) 42½ º

c) 66½ º

d) 23½ º

Question : 4

Consider the following two statements, one labelled as the Assertion (A) and other as Reason (R). Examine these two statements carefully and select the correct answer by using the code given below:
Assertion (A):
Comets revolve round the sun only in long elliptical orbit.
Reason (R):
A comet develops a tail when it gets close to the sun. Codes:

a) A is true, but R is false.

b) A is false, but R is true.

c) Both A and R are true, but R is not the correct explanation of A.

d) Both A and R are true and R is the correct explanation of A.

Question : 5

Who first propounded that the Sun is the centre of our Solar system and the Earth revolves around it?

a) Panini

b) Copernicus

c) Galileo

d) Newton

Question : 6

Planet Saturn

a) Warmer than Neptune

b) Warmer than Jupiter

c) is colder than Neptune

d) is colder than Jupiter