universe & solar system section 2 MCQ Questions & Answers Detailed Explanation

Answer: (c)

The planet which is called twin sister of earth is Venus. Venus is known as the Earth’s twin because of its similar size, chemical composition and density. However, due to its toxic atmosphere, Venus is not habitable.

Answer: (d)

India is a large country spanning over 30° of longitude. It is unusual in having a single time zone all over the country, 5½ hours fast.

If the direction of rotation of the earth is reversed then Indian Standard Time will be – 5½ hr.

When it is noon the time is 12:00; that will be 6:30 A.M.in place of 17:30 P.M. or 5:30 P.M.

Answer: (c)

Sun is vertical over the tropic of cancer on June 21 or Summer Solstice.

Answer: (d)

On an average Sunlight reaches on Earth in 8 min. 20 sec.

Answer: (b)

The group of small pieces of rocks revolving round the sun between the orbits of Mars and Jupiter are called asteroids.

Answer: (d)

Kapler’s law give a description of the motion of planets around the Sun.

Kepler’s are laws are

1. The orbit of every planet is an ellipse with the Sun at one of two faces.
2. A line joining a planet and the Sun sweeps out equal areas during intervals of time.