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Photoelectric Effect.

  • Thread starter soul5
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  • #1
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How many photons per second are emitted by a monochromatic light bulb (650nm) that emits 25 W of power?

W=hfo

hf=Ek + W

P=W/t


is there a way we can find power? how do I solve this question?
 

Answers and Replies

  • #2
Doc Al
Mentor
44,882
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Hint: What's the energy of a single 650nm photon? (This is not a photoelectric effect problem.)
 

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