The intensity of light from a lightbulb is 12 wm2 at a


The intensity of light from a lightbulb is 12 W/m2 at a distance of 0.45 m from the bulb. What is the intensity across the room at a distance of 2.5 m?

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Physics: The intensity of light from a lightbulb is 12 wm2 at a
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