The maximum illumination on a screen at a distance of 2 m from a lamp – McqOptions

MCQOPTIONS

1.	The maximum illumination on a screen at a distance of 2 m from a lamp is 25 lux. The value of total luminous flux emitted by the lamp is [JIMPER 1997]
A.	1256 lumen
B.	1600 lumen
C.	100 candela
D.	400 lumen
Answer» B. 1600 lumen

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