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There is no atomosphere on moon because...

There is no atomosphere on moon because

A

it is closer to earth

B

it revolves round the earth

C

it get light from the sun

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
As, the escape velocity on the surface of moon is small i.e,. `2.4km//s` in comparision to `11.2km//s` that of earth sand also this velocity is smaller than rms velocity of gas molecules, therefore gas molecules escape moon's gravitationa. Thus, moon cannot have atmosphere.
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Knowledge Check

  • There is no atmosphere.on moon because

    A
    it is closer to Earth
    B
    it revolves round the Earth
    C
    it gets light from the Sun
    D
    the escape velocity of gas molecule is smaller than their rms. Velocity

  • Statement-1 : Time period of simple harmonic motion at moon greater than that on earth. because Statement-2: There is no atmosphere on moon.

    A
    Statement-1 is True, Statement-2 is true, Statement -2 is a correct explanation for statement-1
    B
    Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation for statement-1
    C
    Statement-1 is true, Statement -2 is false
    D
    Statement -1 is false, statement-2 is true

  • There is no life on moon because of absence of

    A
    Water
    B
    Oxygen
    C
    Nitrogen
    D
    Hydrogen

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    There is no life on moon because it has no

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    The Moon has no atmosphere because

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