SOLUTION: The​ intensity, I, of light received at a source varies inversely as the square of the​ distance, d, from the source. If the light intensity is 63 ​foot-candles a
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-> SOLUTION: The​ intensity, I, of light received at a source varies inversely as the square of the​ distance, d, from the source. If the light intensity is 63 ​foot-candles a
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Question 1073581: The intensity, I, of light received at a source varies inversely as the square of the distance, d, from the source. If the light intensity is 63 foot-candles at 16 feet, find the light intensity at 8 feet. Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! Since the intensity varies inversely as the square of the distance, then:
63=n/(16)²
n=63x256=16128
16128/(8²)=16128/64=252 ft.candles as the intensity of light at 8 feet. ☺☺☺☺
