A laser produces a 5.00-mW beam of light, consisting of photons with a wavelength of 632.8 nm.
Question:
(a) How many photons are emitted by the laser each second?
(b) The laser beam strikes a black surface and is absorbed. What is the change in the momentum of each photon that is absorbed?
(c) What force does the laser beam exert on the black surface?
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As a beam of photons is absorbed by a black surface the momentum of the photons is absorbed by the ...View the full answer
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