If alpha, beta and gamma rays carry same momentum, which has the longest wavelength?

Step-by-step solution

If the momentum of and particles are p , if this is also equal to h v / c of the photon - -rays, _ de Broglie =h / p As p is the same, the wavelength will be the same. For and particles, they are de Broglie waves and in the case of photons ( -rays), it is the wavelength of the associated electromagnetic wave.