How many photons per second are emitted from a 100-W yellow lightbulb if we assume negligible thermal
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How many photons per second are emitted from a 100-W yellow lightbulb if we assume negligible thermal losses and a quasimonochromatic wavelength of 550 nm? In actuality only about 2.5% of the total dissipated power emerges as visible radiation in an ordinary 100-W incandescent lamp.
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