A photon moving in the +x-direction, scatters off a free stationary electron. The wavelength of the incident photon is 0.0390 nm. After the collision, the electron moves at an angle a below the +x-axis, while the photon moves at an angle e = 84.3° above the +x-axis. (For the purpose of this exercise, assume that the electron is traveling slow enough that the non-relativistic relationship between momentum and velocity can be used.) (a) What is the angle a (in degrees)? counterclockwise from the +x-axis (b) Determine the speed of the electron (in m/s). m/s

A photon moving in the +x-direction, scatters off a free stationary electron. The wavelength of the incident photon is 0.0390 nm. After the collision, the electron moves at an angle a below the +x-axis, while the photon moves at an angle e = 84.3° above the +x-axis. (For the purpose of this exercise, assume that the electron is traveling slow enough that the non-relativistic relationship between momentum and velocity can be used.) (a) What is the angle a (in degrees)? counterclockwise from the +x-axis (b) Determine the speed of the electron (in m/s). m/s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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 photon moving in the +x-direction, scatters off a free stationary electron. The wavelength of the incident photon is 0.0390 nm.
After the collision, the electron moves at an angle a below the +x-axis, while the photon moves at an angle e = 84.3° above the
+x-axis. (For the purpose of this exercise, assume that the electron is traveling slow enough that the non-relativistic relationship
between momentum and velocity can be used.)
(a) What is the angle a (in degrees)?
|• counterclockwise from the +x-axis
(b) Determine the speed of the electron (in m/s).
m/s

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