universe & solar system section 4 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 6

Our solar system is located in which Galaxy?

a) Milky Way

b) Andromeda

c) Alpha Centauri

d) Peroxima Centauri

Answer: (a)

Our solar system is located in Milky Way Galaxy. The Milky Way is the galaxy that contains our Solar System. Its name “milky” is derived from its appearance as a dim glowing band arching across the night sky in which the naked eye cannot distinguish individual stars.

Question : 7 [NDA 2013-II]

Satellite having the same orbital period as the period of rotation of the Earth about its orwn axis is known as

a) geostationary satellite

b) INSAT

c) stationary satellite

d) polar satellite

Answer: (a)

A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometres (22,300 miles) directly over the equatorand revolves in the same direction as the earth rotates (west to east).

Question : 8

What happens when one crosses 180° longitude from east to west ?

a) One neither gains nor looses a day but the time changes

b) There is no change in time or day

c) One looses a day

d) One gains a day

Answer: (d)

Question : 9 [UPPCS (Pre) 2003]

On the surface of the Moon, two persons cannot listen each other as

a) They wear special types of space suits on the Moon

b) Sound travels very slow on the Moon

c) There is no atmosphere on the Moon

d) Their ears stops working at the Moon

Answer: (c)

Question : 10

The average distance between the sun and earth is

a) 155 million km

b) 160 million km

c) 150 million km

d) 145 million km

Answer: (c)

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