In the following, assume that lightbulbs radiate uniformly in all directions and that 5.0% of their power
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(a) Find the average intensity of light at a point 2.0 m from a 120-W red lightbulb (λ = 710 nm).
(b) Is the average intensity 2.0 m from a 120-W blue lightbulb (λ = 480 nm) greater than, less than, or the same as the intensity found in part (a)? Explain.
(c) Calculate the average intensity for part (b).
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Picture the Problem Red and blue 120W lightbulbs radiate vis...View the full answer
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