universe & solar system section 2 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 21

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 : 22

Which of the following statements is/are correct?

1. Lunar eclipse takes place when the Earth comes directly between the Sun and the Moon
2. Solar eclipse happens when the Moon comes directly between the Sun and the Earth
3. Lunar eclipse takes place when the Sun comes directly between the Earth and the Moon
4. Solar eclipse happens when the Earth comes directly between the Sun and the Moon

a) 1 and 2

b) 2 only

c) 3 and 4

d) 1, 2 and 3

Question : 23 [NDA/NA 2016-I]

The brightness of a star depends on its

a) size, temperature and mass

b) size, temperature and distance from the earth

c) size and distance from the earth

d) size and temperature only

Question : 24 [PCS (Pre) 2003]

Which one of the following is heaviest planet of our Solar System?

a) Pluto

b) Saturn

c) Venus

d) Jupiter

Question : 25 [PSC (Pre) 2017]

Assertion (A):
The same face of the Moon always faces the Earth.
Reason (R):
The Moon completes one rotation around its own axis in 23 and half days which is about the same time that it is takes to orbit the Earth.

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)