Classical

Universe - Section 1

41:  

The altitudes of he:),venly bodies appear to be greater than they actually are. This is due to

A.

Vertical motion of these heavenly bodies

B.

Motions of the earth

C.

Atmospheric refraction

D.

These are visible because of light of the sun reflected from their surface

 
 

Option: C

Explanation :


42:  

The tenn 'meteor' is applied to ari interplanetary body

A.

After it enters the atmosphere of the earth

B.

After it enters the earth's atmosphere and explodes in mid air as a ball of fire

C.

After it enters the earth's atmosphere and lands on the surface of the earth without exploding in mid-air

D.

Before it enters the earth's atmosphere

 
 

Option: B

Explanation :


43:  

Among the planets of the solar system, the one which has the longest-period of rotation is

A.

Venus

B.

Mars

C.

Saturn

D.

Pluto

 
 

Option: A

Explanation :


44:  

The Milky Way extends through a distance of

A.

I light year

B.

8 light years

C.

105 light years

D.

1010 light yeers

 
 

Option: C

Explanation :


45:  

The 'period of one revolution of sun around the centre of galaxy is called

A.

Parsec

B.

Astronomical year

C.

Cosmic year

D.

Light year

 
 

Option: C

Explanation :




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