Q. On any planet, the presence of atmosphere implies ($C_{rms} =$ root mean square velocity of molecules and $V_{e} =$ escape velocity)
A) $C_{rms} < < V_{e}$
B) $C_{rms} > V_{e}$
C) $C_{rms} = V_{e}$
D) $C_{rms} = 0$
Explanation
(a) Since $c_{rms} < < V_{e},$ hence molecules do not escape out
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.