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

Question : 1

The Earth’s axis of rotation (polar axis) is always inclined at an angle of

a) 24.5º from the elliptic axis

b) 23.5º from the elliptic axis

c) 23.1º from the elliptic axis

d) 23.0º from the elliptic axis

Question : 2

What is the unit of measurement of distance between celestial bodies ?

a) Light year

b) Kilometre

c) Statute mile

d) Nautical mile

Question : 3

If the time of a place located on 165° E meridian is 11:00 pm on Sunday, what would be the time at the place located on 165° W meridian?

a) 1:00 am on Sunday

b) 11:00 pm on Saturday

c) 12:00 noon on Sunday

d) 11:00 pm on Sunday

Question : 4

Assertion (A):
To orbit around the Sun the planet Mars takes lesser time than the time taken by the Earth.
Reason (R):
The diameter of the planet Mars is less than that of Earth.
Code

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

Which one of the following statements is not correct?

a) All meridians are always parallel to one another

b) An indefinite number of meridians may be drawn on a globe

c) Meridians are spaced farthest apart at the equator and converge to common points at the poles

d) All meridians run in a ture North-South direction

Question : 6

Consider the following statements:

1. Our solar system is located in the orion arm of the Milky way galaxy, about two-third of the way out from the centre.
2. The solar system formed from an interstellar cloud of dust and gas or nebulla about 4.6 billion years ago.

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only