Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 5, Problem 44E
What is the energy of the photon with the frequency you calculated in Exercise 5.43?
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What is the energy of a light quantum (photon) which has a wavelength of 600nm? Compare the energy with the electron wave energy calculated in problem 2 (6.6935 x 10-25) and disscuss the difference.
If a photon has energy of 3.3 eV, calculate its frequency.
Report your answer in multiples of 1012 Hz. (For example, if your answer is 1.2 x
10¹3 Hz, you would enter 12 into the answer blank.)
Your Answer:
Answer
*13.1-8
Momentum of a Photon in a Gaussian Beam.
(a) What is the probability that the momentum vector of a photon associated with a Gaus-
sian beam of waist radius Wo lies within the beam divergence angle 00? Refer to Sec. 3.1
for definitions.
(b) Does the relation p = E/c. hold in this case? Explain.
Chapter 5 Solutions
Astronomy
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