How many photons are emitted by the laser each second

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Reference no: EM13264479

A laser produces a 5.10mW beam of light, consisting of photons with a wavelength of 637.8nm.

Part A How many photons are emitted by the laser each second?

Part B The laser beam strikes a black surface and is absorbed. What is the change in the momentum of each photon that is absorbed?

Part C What force does the laser beam exert on the black surface?

Reference no: EM13264479

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