A photon having energy 0.640 MeV is scattered by a free electron initially at rest such that the scattering angle of the scattered electron is equal to that of the scattered photon as shown in the figure below. E, (a) Determine the scattering angle of the photon and the electron. photon 60 electron 60 (b) Determine the energy and momentum of the scattered photon. energy ,64 X MeV momentum 2.13e-9 X kg · m/s (c) Determine the kinetic energy and momentum of the scattered electron. kinetic energy 0.177 MeV momentum 2.13e-9 X kg · m/s

A photon of wavelength 200 nm is scattered by an electron that is initially at rest. Which one of the following statements concerning the wavelength of the scattered photon is true?   Question 25 options:   The wavelength is zero nm.    The wavelength is greater than 200 nm.   The wavelength is 200 nm.    The wavelength is less than 200 nm,   The wavelength is less than 100 nm but greater than zero.

If a photon of wavelength 0.0665 nm hits a free electron and is scattered at an angle of 35◦ from its original direction, findat. the change in wavelength of this photon,b. the wavelength of the scattered photon,vs. the change in energy of the photon (is it a loss or a gain?), and d. the energy gained by the electron.

You set up a photoelectric experiment with an unknown metal to eject electrons. You use light of wavelength λ = 670 nm, which just BARELY ejects electrons from the metal. Planck□s constant is either h = 6.63 x 10-34 J-s or h = 4.14 x 10-15 ev.s. a) What is the binding energy of the unknown metal in eV? ev b) You change the light source to one with a wavelength of λ = 310 nm. Using the binding energy you found in the previous step, find the maximum kinetic energy of an electron that is ejected from the metal in Joules. J c) What is the stopping voltage for an electron with the kinetic energy you just found? V