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On any planet, the presence of atmospher...

On any planet, the presence of atmosphere implies (`C_(rms)=` root mean square velocity of molecules and `v_(s)=` escape velocity)

A

`C_(rms)lt V_(e)`

B

`C_(rms)gt V_(e)`

C

`C_(rms)=V_(e)`

D

`C_(rms)=0`

Text Solution

Verified by Experts

The correct Answer is:
A
If `C_("rms")ge V_(e)`, all the moleculoes will escape in space and there will be no atmosphere on the planet.
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