An isotropic source of 2 candela produces light flux equal to

2023

Answer: C. 8π lumen — For an isotropic source, luminous flux = luminous intensity x solid angle. The full solid angle around a point source is 4 pi steradian, so flux = 2 x 4 pi =…

1. A.

   2π lumen

2. B.

   4π lumen

3. C.

   8π lumen

4. D.

   More than one of the above

5. E.

   None of the above

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