In the photoelectric effect, no electrons are emitted if the frequency of the li

Question

In the photoelectric effect, no electrons are emitted if the frequency of the light is greater or less than the cutoff frequency. Consider the Compton effect. In the figure, in which case is the electron knocked out with more energy? A B In the previous problem, in which case does the scattered photon have the longest wavelength? A B The de Broglie wavelength of a proton is greater than, less than, or the same as that of an electron with the same velocity. Four possible transitions for a hydrogen atom are listed below: ni = 2; nf = 5 ni = 3; nf = 5 ni = 5; nf = 2 ni = 5; nf = 3 Which transition will emit the shortest-wavelength photon? A B C D In the previous problem, for which transition will the atom gain the most energy? A B C D

Explanation / Answer

c
b
a
b
c
d

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