The candle power of a lamp placed normal to a working plane is 60 CP. – McqOptions

MCQOPTIONS

1.	The candle power of a lamp placed normal to a working plane is 60 CP. Find the distance if the illumination is 15 lux.
A.	1.5 meters
B.	2.5 meters
C.	4 meters
D.	2 meters
Answer» E.

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