universe & solar system section 1 MCQ Questions & Answers Detailed Explanation

Question : 1

What causes the change of Seasons?

a) Earth’s revolution and inclination of its axis

b) Earth’s rotation and inclination of its axis

c) Earth’s revolution

d) Earth’s rotation and revolution

Question : 2

In completing one revolution of the Sun, Earth takes approximately

a) 365.5 days

b) 365.75 days

c) 365.25 days

d) 365 days

Question : 3

The average distance between the sun and earth is

a) 155 million km

b) 160 million km

c) 150 million km

d) 145 million km

Question : 4

On the surface of the moon

a) the mass is the same but the weight is lesser

b) the mass is more but the weight is lesser

c) the mass and weight both remain unchanged

d) the mass of an object is more but it weighs lesser

Question : 5

Statement I :
Sideral day is shorter than Solar day.
Statement II :
The motion of the Earth in its orbit around the Sun is termed as revolution.
Code:

a) Statement I is true but statement II is false.

b) Statement I is false but Statement II is true

c) Both the statements are individually true but statement II is not the correct explanation of statement I

d) Both the statements are individually true and statement II is the correct explanation of statement I

Question : 6

Every Solar eclipse occurs on

a) Amavasya only

b) Poornima only

c) Both (A) and (B)

d) Neither (A) nor (B)