If the de - Broglie wavelengths for a proton and for a `alpha` - particle are equal , then the ratio of their velocities will be

If the de - Broglie wavelengths for a proton and for an alpha - particle is equal , then what is the ratio of velocities for proton and alpha particle?

If the de Broglie wavelengths associated with a proton and alpha particle are equal then the ration of velocites of the proton and the alpha paricle will be :

If the de Broglie wavelengths associated with a proton and alpha particle are equal then the ration of velocites of the proton and the alpha paricle will be :

The ratio of the de Broglie wavelength of a proton and alpha particles will be 1:2 if their

The ratio of the de Broglie wavelength of a proton and alpha particles will be 1:2 if their

The ratio of the de Broglie wavelength of a proton and alpha particles will be 1:2 if their

Find the ratio of de Broglie wavelength of proton and alpha -perticle of same energy