You are standing 19m from a 130w- lightbulb if the pupil of, Physics

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You are standing 19m from a 130w- lightbulb if the pupil of

You are standing 1.9m from a 130W- lightbulb.

a. If the pupil of your eye is a circle 5.0mm in diameter, how much energy enters your eye per second? (Assume that 5.0% of the lightbulb's power is converted to light.).

b. Repeat part A for the case of a 1.0mm--diameter laser beam with a power of 0.50.

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Physics: You are standing 19m from a 130w- lightbulb if the pupil of

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