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

Question : 1

Consider the following statements:

1. When the Earth comes between the moon and the sun it is called solar eclipse.
2. When the moon comes between the sun and the Earth it is called Lunar eclipse.

a) 2 only

b) None

c) 1 and 2

d) 1 only

Question : 2

Which of the following is the nearest star of Earth?

a) Rigel

b) Vega

c) Sun

d) Sirius

Question : 3

Which of the following statements about the structure of the sun is/are true?

1. Atoms absorb and re-radiate electromagnetic energy generated in the core moving it to the sun’s surface
2. The convection zone consists of Row density gases, stirred by convection
3. As the gases warm and become less dense, they rise to the sun’s surface
4. The gases emit energy into space in the form of visible light, ultra-violet light and infra-red radiation

a) None

b) 1, 2, 3 and 4

c) 2 and 4

d) 1, 3 and 4

Question : 4

Among the following which planet takes maximum time for one revolution around the Sun?

a) Mars

b) Venus

c) Jupiter

d) Earth

Question : 5

Consider the following statements.

1. The tropical year is shorter than the sidereal year.
2. The solar day is longer than the sidereal day.

a) Both 1 and 2

b) Neither 1 nor 2

c) 2 only

d) 1 only

Question : 6

When the earth is at its maximum distance from the sun it is said to be in

a) apogee

b) perigee

c) perihelion

d) aphelion