Solve the Problem. -The Intensity of Light from a Light Source Varies Inversely

question 65

Multiple Choice

Solve the problem.
-The intensity of light from a light source varies inversely as the square of the distance from the source. Suppose the the intensity is 40 foot-candles at a distance of 10 feet. What will the intensity be at a distance of 23 feet? Round your answer to the tenths place.

• A)7.3 foot-candles
• B)7.8 foot-candles
• C)7.0 foot-candles
• D)7.6 foot-candles

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