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.Luminous flux is expressed in a) Lumen b) Candela c) Weber d) Lue

.Luminous flux is expressed in a) Lumen b) Candela c) Weber d) Lue

Grade:upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10336 Points
2 years ago
Dear student

The answer is lumen

Regards
Vikas TU
14149 Points
2 years ago
The lumen is derived from the unit of luminous power, the candela (cd). Thus one lumen is the luminous flux emitted within unit solid angle (one steradian) by a small source having a uniform luminous intensity of one candela, so that 1 lm = 1 cd sr, and the total flux in all directions is 4 π lm.

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