Given below are two statements:
Statement I: Moon has no atmosphere.
Statement II: Root mean square velocity ( 
) of gas molecules is more than escape velocity 
at moon.
In the light of the above statements, choose the most appropriate answer from the options given below:
Text Solution
Verified by ExpertsC
The escape velocity of the Moon (approximately 
) is significantly lower than that of Earth (around 
). Because the Moon's escape velocity is less than the root mean square velocity of gas molecules, particularly lighter gases like hydrogen and helium, these molecules can easily escape the Moon's gravitational field and dissipate into space, leading to the absence of a substantial atmosphere.
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