A Photon and a particle having the same wavelength. Can anything be said about how their linear momenta compar

Answer 1

Not really. An electromagnetic wavelength (of a massless photon) is related to the energy (not momentum) of the photon. A De Broglie wavelength relates the (apparent) wavelength of a particle with its momentum.


Doug

Answer 2

Actually, electromagnetic radiation does have momentum given by hv/c where h is Planck's constant, v is the frequency and c is the speed of light. When you talk about a particle having a wavelength, it is the de Broglie wavelength given by h/p wher p is the particles momentum. If the de Broglie wavelength of the particle were the same as the electromagnetic wave, their momentum would be the same, but note physical particles have very short wavelengths.