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Question

Physics Question on Atoms and Molecules

A planet with radius R and acceleration due to gravity g, will have atmosphere only if r.m.s. speed of air molecules is less than

A

1.414gR1.414 \sqrt{gR}

B

1.732gR 1.732 \sqrt{gR}

C

2gR2 \sqrt{gR}

D

3.14gR3.14 \sqrt{gR}

E

2.75gR2.75 \sqrt{gR}

Answer

1.414gR1.414 \sqrt{gR}

Explanation

Solution

The correct option is (A) : 1.414gR1.414 \sqrt{gR}