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

Question : 1

Which of the following statements regarding the duration of day and night is correct?

a) Difference is least at the Tropics and progressively increases towards the Equator and Poles

b) Difference is maximum at the Tropics and progressively decreases towards the Equator and Poles

c) Difference is maximum at the Equator and progressively decreases away from it

d) Difference is least near the Equator and progressively increases away from it

Question : 2

Which of the following correctly explains Kepler’s first law of Planetary Motion?

a) The square of the time period of a planet is proportional to the cube of the semimajor axis of the ellipse

b) None of the above

c) The radius vector from the sun to the planet sweeps equal area in equal time

d) All the planets move in elliptical orbits with the sun at a focus

Question : 3

What is the most accurate description of the shape of the earth ?

a) A geoid

b) An oblate sphere

c) A sphere

d) A circle

Question : 4

In the form of organism, the Scientific name of Earth is

a) Green Planet

b) Harmij

c) Sita

d) Cow

Question : 5

Which one of the following may have alien life because of a very conductive environment to life?

a) Europa-The Jupiter’s Moon

b) Moon-The Earth’s Moon

c) Mars

d) Jupiter

Question : 6

The Astronaut looks the sky in the space

a) Red

b) White

c) Black

d) Blue