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What is the average intensity of this beam

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Reference no: EM13331452

A 0.45mW laser produces a beam of light with a diameter of 1.5mm.

What is the average intensity of this beam?

At what distance does a 140W lightbulb have the same average intensity as that found for the laser beam in part (a)? (Assume that 5.0% of the bulb's power is converted to light.)

Reference no: EM13331452

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