universe & solar system section 10 MCQ Questions & Answers Detailed Explanation

Question : 1

Consider the following two statements, one labelled as the Assertion (A) and the other as Reason (R). Examine these two statements carefully and select the correct answer by using the codes given below:
Assertion (A):
To orbit around Sun, the planet Mars takes lesser time than time taken by the Earth.
Reason (R):
The diameter of the planet Mars is less than that of 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 : 2

Ecliptic circle is so named because

a) eclipses occur only when the moon is on or near the path

b) it is the apparent great-circle annual path of the sun

c) both of these are correct

d) None

Question : 3

Lunar eclipse occurs

a) When sun lies between earth and moon

b) None of these

c) When earth lies between sun and moon

d) When moon lies between earth and sun

Question : 4

On which days do the spring tides occur?

1. new moon
2. first quarter of the moon
3. third quarter of the moon
4. full moon

a) 1 and 4

b) 2 and 3

c) 2, 3 and 4

d) 1, 2 and 4

Question : 5

Hubble space telescope has captured, for the first time, detailed image of surface of a distant star. Name of the star

a) Betelgeuse

b) Big Dipper

c) 70 Virgins

d) Virgo

Question : 6

Which one of the following geological periods was frequented by increased volcanic activities?

a) Jurassic period

b) Miocene period

c) Ordovician period

d) Cretaceous period