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If three gas molecules have velocity `0.5`, `1` and `2 km//s` respectively, find the ratio of their root mean square speed and average speed.A. `V_(rms)=(V_(avg))/(2)`B. `V_(rms)=V_(avg)`C. `V(r.m.s)=1.134V_(av)`D. `V_(rms)=2V_(avg)`

Answer» Correct Answer - C
`V_(rms)=sqrt((V_(1)^(2)+V_(2)^(2)+V_(3)^(2))/(3))`
=1.323
`V_(rms)=(V_(1)+V_(2)+V_(3))/(3)=1.67km//s`
`V_(rms)=1.134V_(avg)`


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