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The power output of a laser is measured in units of watts (W), where one watt is equal to one joule per second. (1W=1J/s). 1. What is the number of photons emitted per second by a 1.00 mW nitrogen laser? The wavelength emitted bya nitrogen laser is 337nm. 2. assume the laser beam diameter is 100 mm. What is the magnitude of the electric field amplitude associated with the beam and the corresponding photon density per cm3?

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