At what rate do photons emitted by a green-light laser ((lambda=532 mathrm{~nm})) hit a wall (2.00 mathrm{~m})
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At what rate do photons emitted by a green-light laser \((\lambda=532 \mathrm{~nm})\) hit a wall \(2.00 \mathrm{~m}\) from the laser if the power rating is \(5.00 \mathrm{~mW}\) ? What assumption must you make to solve this problem?
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