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2. A laser pointer used in the classroom emits light at 6550 A, at a power of 4.00 mW. (One watt is the SI
2. A laser pointer used in the classroom emits light at 6550 A, 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?
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The wavelength of emitted light from Lazer 6550A Power of the Lazer pointer 400 mW now the energy ...
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Physics
Authors: James S. Walker
5th edition
978-0133498493, 9780321909107, 133498492, 0321909100, 978-0321976444
