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On any planet, the presence of atmsopher...

On any planet, the presence of atmsophere implies: `[c_(r.m.s)` = root mean square velocity of molecules and `v_e` = escape velocity]

A

`c_(r.m.s.) ltlt v_e`

B

`c_(r.m.s.) gt v_e`

C

`c_(r.m.s.) = v_e`

D

`c_(r.m.s.) = 0

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