You and your friend Bruce are experimenting with a red lamp shade and blue lamp shade. You place lamp shades individually over a 120-W light bulb. Assume that the light radiates from the lamps uniformly and 7.8% of their power is converted to light. (a) What is the average intensity of the light at 2.0 m from the red  (? = 710 nm)  lamp shade? ___________________ W/m2

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