Question: A short light pulse of energy E = 7.5 J falls in the form of a narrow and almost parallel beam on a mirror plate

A short light pulse of energy E = 7.5 J falls in the form of a narrow and almost parallel beam on a mirror plate whose reflection coefficient is p = 0.60. The angle of incidence is 30°. In terms of the corpuscular theory find the momentum transferred to the plate.

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