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Use the Einstein relation E = hf and the relation E = pc

An Introduction to Thermal Physics | 1st Edition | ISBN: 9780201380279 | Authors: Daniel V. Schroeder ISBN: 9780201380279 40

Solution for problem 3P Chapter A

An Introduction to Thermal Physics | 1st Edition

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An Introduction to Thermal Physics | 1st Edition | ISBN: 9780201380279 | Authors: Daniel V. Schroeder

An Introduction to Thermal Physics | 1st Edition

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Problem 3P

Use the Einstein relation E = hf and the relation E = pc to show that the de Broglie relation A.3 holds for photons.

Step-by-Step Solution:

Solution 3P

Given in the question are two energy magnitudes. We can equate the both equations and then arrive at the desired expression. The steps are discussed below.

Step 1

Given, …..(1)

Here, Planck’s constant

frequency of a photon

The energy of a photon with momentum  and speed  is

…..(2)

Step 2 of 2

Chapter A, Problem 3P is Solved
Textbook: An Introduction to Thermal Physics
Edition: 1
Author: Daniel V. Schroeder
ISBN: 9780201380279

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Use the Einstein relation E = hf and the relation E = pc