Physics, 29.10.2019 21:31, ysabel0420

The power output of a laser is measured by its wattage, the number of joules of energy it radiates per second (1 w = 1 j s-1). a 300-mw krypton laser produces a beam of red light with a wavelength of 676.4 nm (6.764×10-7 m). (a) calculate the energy carried by each photon. (b) calculate the number of photons emitted by the laser per second.

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The power output of a laser is measured by its wattage, the number of joules of energy it radiates p...