Electromagnetic radiation with a wavelength of 3.5 * 10^-12 m is scattered from stationary electrons, and photons that have been scattered through 50° are detected.After a scattering event the magnitude of the photon's momentum is: A)0 kg.m/s B)8.7*10^-23 kg.m/s C)1.5 * 10^-22 kg.m/s D)2.0*10^-22 kg.m/s E)2.2 * 10^-22 kg.m/s

Question

Quizplus · Accepted Answer

The momentum of a photon is given by p = h/λ, where h is Planck's constant (6.626 x 10^-34 Js) and λ is the wavelength. Substituting the given wavelength (3.5 x 10^-12 m) into the formula gives a momentum of approximately 1.5 x 10^-22 kg·m/s.

Electromagnetic Radiation with a Wavelength of 3