a. (i) Calculate the wavelength (in nm) for an electron (mass = 9.11×10-31 kg) travelling at a speed of 1.0×107 m⋅s -1 . (ii) What is the frequency (in Hz) associated with the wavelength of the electron above? Speed of light c = 3.00×108 m⋅s -1

a. (i) Calculate the wavelength (in nm) for an electron (mass = 9.11×10-31 kg) travelling at a speed of 1.0×107 m⋅s -1 . (ii) What is the frequency (in Hz) associated with the wavelength of the electron above? Speed of light c = 3.00×108 m⋅s -1

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter27: Quantum Physics

Section: Chapter Questions

Problem 29P

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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. (i) Calculate the wavelength (in nm) for an electron (mass = 9.11×10^-31 kg) travelling at a speed of 1.0×10⁷ m⋅s ^-1 .

(ii) What is the frequency (in Hz) associated with the wavelength of the electron above? Speed of light c = 3.00×108 m⋅s ^-1

Definition Definition Rate at which light travels, measured in a vacuum. The speed of light is a universal physical constant used in many areas of physics, most commonly denoted by the letter c . The value of the speed of light c = 299,792,458 m/s, but for most of the calculations, the value of the speed of light is approximated as c = 3 x 10 8 m/s.

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