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There is no atomosphere on moon because...

There is no atomosphere on moon because

A

it is closer to the earth

B

it revolves round the earth

C

it gets light from the sun

D

the escape velocity of gas molecules is less than their root mean square velocity on the moon

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The correct Answer is:
D
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FIITJEE-GRAVITATION-Assigment problems (Objective) (level-I)
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  3. A body of mass m at inifnity is approaching the centre of a hypothetic...

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  4. There is no atomosphere on moon because

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