A source has luminous intensity 20 candela. The luminous flux emitted into a solid angle of π steradian is
Options
- A. 5π lumen
- B. 10π lumen
- C. 20π lumen
- D. 40π lumen
- E. 80π lumen
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Correct Answer (Detailed Explanation is Below)
C. 20π lumen
Detailed Explanation
Luminous flux into a given solid angle is Φ = IΩ. Thus Φ = 20 × π = 20π lumen.
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