1% of light of a source with luminous intensity 50 candela is incident – McqOptions

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1.	1% of light of a source with luminous intensity 50 candela is incident on a circular surface of radius 10 cm. The average illuminance of surface is
A.	100 lux
B.	200 lux
C.	300 lux
D.	400 lux
Answer» C. 300 lux

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