A) how many photons per second are emitted by a monochromatic lightbulb (660 nm ) that emits 45 w of power? (express your answer using two significant figures.) b) if you stand 17 m from this bulb, how many photons enter each of your eyes per second? assume your pupil is 5.0 mm in diameter and that the bulb radiates uniformly in all directions. (express your answer using two significant figures.)
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A) how many photons per second are emitted by a monochromatic lightbulb (660 nm ) that emits 45 w of...
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