universe & solar system section 3 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 41

Consider the following two statements, one labeled as the Assertion (A) and the other as Reason (R). Examine these two statements carefully and select the correct answer using the codes given below:
Assertion (A):
The same face of the Moon is always presented to the Earth.
Reason (R):
The Moon rotates about its own axis in days which is about the same time that it takes to orbit the earth. 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 : 42

Which planet is surrounded by ring?

a) Venus

b) Earth

c) Mars

d) Saturn

Question : 43 [BPSC (Pre) 2005]

When does Solar eclipse occur?

a) When Moon comes between Earth and Sun

b) None of the above

c) When Earth comes between Sun and Moon

d) When Sun comes between the Earth and the Moon

Question : 44

The principle of Blackhole was enunciated by

a) S. Chandrashekhar

b) H. Khurana

c) H.J. Bhabha

d) C.V. Raman

Question : 45 [NDA 2010-I]

If the movement of the Earth’s crust or a major climatic change makes an old stream young, it is called

a) subsequent stream

b) aggradation

c) rejuvenation

d) consequent stream