universe & solar system section 3 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 1 [RAS/RTS (Pre) 2007]

‘Big Bang theory’ is related to

a) Origin of the Himalayas

b) Eruption of Volcanoes

c) Origin of the Universe

d) Continental Drifts

Answer: (c)

Question : 2

What is the time taken by the Earth to complete one rotation on its axis?

a) 24 hr

b) 24 hr 12 min 6 sec

c) 23 hr 56 min 4 sec

d) 23 hr 52 min 4 sec

Answer: (c)

The time taken by the Earth to complete one rotation on its axis is 23 hr-56 min 4 sec.

Question : 3 [SSC Stenographer 2011]

The mass of Jupiter is approximately

a) one hundredth of the solar mass

b) half the solar mass

c) one thousandth of the solar mass

d) one tenth of the solar mass

Answer: (c)

Jupiter's radius is about 1/10 the radius of the Sun, and its mass is 0.001 times the mass of the Sun.

Jupiter's mass is 2.5 times that of all the other planets in the Solar System combined—this is so massive that its barycenter with the Sun lies above the Sun's surface at 1.068 solar radii from the Sun's center.

Question : 4 [MPPCS (Pre) 1992]

In which situation Lunar eclipse occurs?

a) Full Moon

b) None of these

c) New Moon

d) Half Moon

Answer: (a)

Question : 5

The Astronaut looks the sky in the space

a) Red

b) White

c) Black

d) Blue

Answer: (c)

The sky looks black from the space. In space, sunlight or any kind of star light does not have anything from which to bounce off.

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