Physics, 17.01.2022 02:40 darkghostmist
A light source 1 m away from an opening which is 1 square meter will cover 4
m2 when it is 2-m away from the opening. How many square meters will it cover
when it is 3 m away? What will be the intensity of the light when it is 3 n away ?
Answers: 1
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A light source 1 m away from an opening which is 1 square meter will cover 4
m2 when it is 2-m awa...
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