An isotropic source of 2 candela produces light flux equal to
2023
An isotropic source of 2 candela produces light flux equal to
- A.
2π lumen
- B.
4π lumen
- C.
8π lumen
- D.
More than one of the above
- E.
None of the above
Attempted by 50 students.
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Correct answer: C
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 = 8 pi lumen.