Question

(a) Calculate the momentum (in kg · m/s) of a photon having a wavelength of 8.38...

(a)
Calculate the momentum (in kg · m/s) of a photon having a wavelength of 8.38 µm. ___ kg · m/s

(b)
Find the velocity (in m/s) of an electron having the same momentum. ___ m/s

c) What is the kinetic energy (in J) of the electron? ___ J
How does it compare with the energy of the photon?   
Ephoton/KEelectron = _____

please help with these questions, thanks!
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Answer #1

Бz - olX 1GE p=h | | 6-62.6 xle-39 =d m 8-38 xlo -6 а -0.291xto 28 р-7.01х10-29 Kamis = mv 7 VE P - 29 V- 1-91Х10 9-( x)0-3)

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