universe & solar system section 13 MCQ Questions & Answers Detailed Explanation

Question : 1

When does the sun shine vertically on the Equator?

a) Twice a year

b) Once a year

c) For six months

d) Throughout the year

Question : 2

Two planets which have no satellites

a) Mercury and Mars

b) Venus and Mars

c) Mercury and Venus

d) Earth and Uranus

Question : 3

The Circle of illumination divides Earth into two hemispheres known as

a) Day and night

b) Summer and Winter

c) North and South

d) East and West

Question : 4

Consider the following statements regarding asteroids.

1. Asteroids are rocky debris of varying sizes orbiting the Sun.
2. Most of the asteroids are small but some have diameter as large and 1000 km.
3. The orbit of asteroids lies between the orbits of Jupiter and Saturn.

a) 1 and 2 are correct

b) 1 and 3 are correct

c) 2 and 3 are correct

d) 1, 2 and 3 are correct

Question : 5

How much is the approximate time gap between two successive high tides ?

a) 11.5 hours

b) 12.5 hours

c) 9 hours

d) 6 hours

Question : 6

Unlike other Meridians International Date Line is drawn zigzag in order to

a) adjust the day in calendar while sailing from east to west and vice versa

b) make 180°E and 180°W coterminous

c) facilitate the sailors to adjust time in their watch

d) permit certain land areas and groups of islands to have the same calendar day