KTGMedium
Question
N(< 100) Molecules of a gas have velocities 1, 2, 3.........N , km/s respectively . Then :-
Options
A.rms speed and average speed of molecules are same
B.Ratio of rms speed to average speed is 
C.Ratio of rms speed to average speed is 
D.Ratio of rms speed to average speed is of a molecule 
Solution
Average speed
vrms =
rms speed
vrms =
=
∴
vrms =
rms speed
vrms =
=
∴
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