SAT, 10.02.2022 14:00 bxymichelle
A laser pointer used in the classroom emits light at 6550 å, at a power of 4. 00 mw. (one watt is the si unit of power, the measure of energy per unit of time. 1 w = 1 j/s). How many photons are emitted from the pointer in 115 seconds?.
Answers: 1
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A laser pointer used in the classroom emits light at 6550 å, at a power of 4. 00 mw. (one watt is th...
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