A point source of 100 candela is held 5 m above a sheet of blotting paper which

Question

A point source of 100 candela is held 5 m above a sheet of blotting paper which reflects 75% of the incident light

Options:

A . 3 lux

B . 3 phot

C . 4 lux

D . 4 phot

Answer: Option C

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