universe & solar system section 3 MCQ Questions & Answers Detailed Explanation

Question : 1

On the surface of the moon, the

a) only the mass is lesser

b) mass and weight both remain unchanged

c) mass remains constant and only the weight is lesser

d) mass and weight become lesser

Question : 2

Consider the following statements:

1. The nearest large galaxy of Milky Way is the Andromeda galaxy.
2. The Sun’s nearest known star is a red dwarf star called Proxima Centauri, at a distance of 4.
3. light years away.

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only

Question : 3

Which one of the following planets rotates clockwise?

a) Venus

b) Mercury

c) Mars

d) Earth

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 codes given below:
Assertion (A):
The planet Neptune appears blue in colour.
Reason (R):
The presence of Methane gas in the atmosphere of Neptune is responsible for its colour. 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

Solar energy is due to

a) Nuclear Fission

b) Oxidation

c) Nuclear Fusion

d) Ionization

Question : 6

Global Positioning System (GPS) is associated with

1. determining latitude and longitude
2. constellation of satellites
3. US system of GPS and Russian system of GLONASS
4. navigation

a) 2 and 3

b) All of these

c) 1 and 4

d) 1, 2 and 4