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Answered

If the surface area of light is tripled the illumination is multiplied by a factor of ____. ​.

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Chirmmygo

Answer:

Multiplied by a factor of 9 = (3²)

Explanation:

If you triple the radius, the surface area of the larger sphere increases by a factor of 9 = (3²). Since the same total amount of light is illuminating each spherical shell, the light has to spread out to cover 4 times as much area for a shell twice as large in radius. The light has to spread out to cover 9 times as much area for a shell three times as large in radius.

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