1.

N (< 100) molecules of a gas have velocities 1, 2, 3,........ N km/s respectively. Then ratio of rms speed and average speed is

A. 1
B. \[\frac{\sqrt{\left( 2N+1 \right)\left( N+1 \right)}}{6N}\]
C. \[\frac{\sqrt{\left( 2N+1 \right)\left( N+1 \right)}}{6}\]
D. \[2\sqrt{\frac{2N+1}{6\left( N+1 \right)}}\]
Answer» E.


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