A 0.7 MeV photon scatters from an electron initially at rest. If the photon scatters at an angle of 35°, calculate (a) the energy and wavelength of the scattered photon, (b) the kinetic energy of the recoiling electron, and (c) the angle at which the electron recoils.

A 0.7 MeV photon scatters from an electron initially at rest. If the photon scatters at an angle of 35°, calculate (a) the energy and wavelength of the scattered photon, (b) the kinetic energy of the recoiling electron, and (c) the angle at which the electron recoils.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 31P

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Concept explainers

Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.

Question

A 0.7 MeV photon scatters from an electron initially at rest. If the photon scatters at an angle
of 35°, calculate
(a) the energy and wavelength of the scattered photon,
(b) the kinetic energy of the recoiling electron, and
(c) the angle at which the electron recoils.

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