Solution Found!
Use the Einstein relation E = hf and the relation E = pc
Chapter , Problem 3P(choose chapter or problem)
QUESTION:
Use the Einstein relation \(E=h f\) and the relation \(E=p c\) to show that the de Broglie relation A.3 holds for photons.
Questions & Answers
QUESTION:
Use the Einstein relation \(E=h f\) and the relation \(E=p c\) to show that the de Broglie relation A.3 holds for photons.
ANSWER:
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 of 2
Given, \(E=h f\) ………. (1)
Here, \(h\) = Planck's constant
\(f=\) frequency of a photon
The energy of a photon with momentum \(p\) and speed \(c\) is
\(E=p c\) ………. (2)