A flask has 10 molecules out of which four molecules are moving at `7 ms^(-1)` and the remaining ones are moving at same speed of `X ms^(-1)`. If rms of the gas is `5 ms^(-1)`, what is `X` ?

Root mean square speed of a gas is 5 ms^(-1) If some molecules out of 10 molecules in all are moving with 7ms^(-1) and rest all the molecules moving with 3 m sec^(-1) then number of molecules moving with higher speed is ____________.

Root mean square speed of a gas is 5 ms^(-1) If some molecules out of 10 molecules in all are moving with 7ms^(-1) and rest all the molecules moving with 3 m sec^(-1) then number of molecules moving with higher speed is ____________.

A man moving with 5 ms^(-1) observes rain falling vertically at the rate of 10 ms^(-1) . Find speed of the rain with respect to ground.

A man moving with 5 ms^(-1) observes rain falling vertically at the rate of 10 ms^(-1) . Find speed of the rain with respect to ground.

What is the de-Broglie wavelength associated with an electron moving with a speed of 5.4 xx 10^6 ms^(-1) ?

If a gas contains only three molecules that move with velocities of 100,200, 500 ms^(-1) . What is the rms velocity of that gas in ms^(-1) ?

A gas consists of 5 molecules with a velocity of 5ms^(-1) , 10 molecules with a veclocity of 3ms^(-1) and 6 molecules with a velocity of 6ms^(-1) . The ratio of average velocity and rms velocity of the molecles is 9.5xx10^(-x) Where x is……….

The r.m.s. velocity of the molecules of a gas at S.T.P. is 485.6 ms^(-1) . Calculate the density of the gas.