A light source having an intensity of 400 candle power is fitted with – McqOptions

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1.	A light source having an intensity of 400 candle power is fitted with a reflector so that it directs 70 percent of its light along a beam having a divergence angle of 5 degrees. Total flux emitted along the beam is:
A.	1600 / π
B.	1120 π
C.	1600 π
D.	1120 / π
Answer» C. 1600 π

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