On any planet, the pressure of atmosphere implies (C_ rms = R.M.S velocity of molecules and V_e = escape velocity)

MHT CET Physics question

On any planet, the pressure of atmosphere implies ( = R.M.S velocity of molecules and = escape velocity)

Answer: (A)

A planet can retain an atmosphere only if the r.m.s. speed of its gas molecules is much smaller than the escape velocity;

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Question ID VK-062814