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Solve the Problem. -The Intensity I of Light Varies Inversely as the Square

Question 344

Multiple Choice

Solve the problem.
-The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 4 foot candles, find the intensity on a screen 20 ft from the light.


A) 2 foot-candles
B) Solve the problem. -The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 4 foot candles, find the intensity on a screen 20 ft from the light. A) 2 foot-candles B) foot-candle C) foot-candles D) foot-candle foot-candle
C) Solve the problem. -The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 4 foot candles, find the intensity on a screen 20 ft from the light. A) 2 foot-candles B) foot-candle C) foot-candles D) foot-candle foot-candles
D) Solve the problem. -The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 4 foot candles, find the intensity on a screen 20 ft from the light. A) 2 foot-candles B) foot-candle C) foot-candles D) foot-candle foot-candle

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