Heat And Thermodynamics

The speed of sound in an ideal gas at a given temperature \(T\) is \(v\). The rms speed of gas molecules at that temperature is \(v_{\text {rms }}\). The ratio of the velocities \(v\) and \(v_{\text {rms }}\) for helium and oxygen gases are \(X\) and \(X^{\prime}\) respectively. Then, \(\frac{X}{X^{\prime}}\) is equal to