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Luminous Intensity

If the lumino...

Question

If the luminous intensity of a unidirectional bulb is 100 candela then total luminous flux emitted from the bulb is.

A

1561 lumen

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B

1256 lumen

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C

985 lumen

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D

961 lumen

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Solution

The correct option is A 1256 lumen
Total luminous flux = $4 π \times 100 = 1256$ lumen.

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