Physics - Modern Physics Question with Solution | TestHub

On the basis of dual nature of light, de-Broglie suggested that the dual nature is not only of light, but each moving material particle has the dual nature. He assumed a wave to be associated with each moving material particle which is called the matter-wave. The wavelength of this wave is determined by the momentum of the particle. If$\mathrm{p}$is the momentum of the particle, the wavelength of the wave associated with it is

$\mathrm{\lambda }=\frac{\mathrm{h}}{\mathrm{p}}$, where$\mathrm{h}$is Planck's constant.

Since, it is given that, alpha, beta and gamma rays carry the same momentum, so they will have the same wavelength.