Modern Physics
Modern Physics
2nd Edition
ISBN: 9780805303087
Author: Randy Harris
Publisher: Addison Wesley
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Chapter 3, Problem 47CE

(a)

To determine

To Find:The wavelength of photon.

(b)

To determine

To Find:The ratio of the kinetic energies of two.

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Calculate the momentum of an X-ray photon with a wavelength of 0.17nm. H80 this value compare with the momentum of a free electron that has been accelerated through a potential difference of 5000 volts? (Hint: electron mass, m, = 9.10938 x 10" kg; electron charge e = 1.602 x 10"C; speed of light e = 3.0 x 10' m.s'; 1.00 J=1.00 VC; h = 6.626 x 10"J.s. The various energy units are: 1 J= 1 kg.m's³, 1.00 eV -1VC, leV = 1.602 x 10 "J, 1J - 6.242 x 10" eV, etc.).
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