Two light sources with equal luminous intensity are lying at a distanc – McqOptions

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1.	Two light sources with equal luminous intensity are lying at a distance of 1.2 m from each other. Where should a screen be placed between them such that illuminance on one of its faces is four times that on another face
A.	0.2 m
B.	0.4 m
C.	0.8 m
D.	1.6 m
Answer» D. 1.6 m

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