A light bulb radiates isotropically (the same in all directions). At a distance r from the bulb, the intensity of the light is 0.096 W/m2. If the total power radiated by the bulb is 3.5 W, what is r? 2.3 m 0.99 m 1.7 m 6.9 m 3.5 m
A light bulb radiates isotropically (the same in all directions). At a distance r from the bulb, the intensity of the light is 0.096 W/m2. If the total power radiated by the bulb is 3.5 W, what is r? 2.3 m 0.99 m 1.7 m 6.9 m 3.5 m
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