Physics · Illumination
A lamp takes 5 A at 250 V and emits 4000 lumens. Its Mean Spherical Candle Power (MSCP) is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14000 π
- 21000π✓
- 31000 π
- 44000π
Correct answer
1000π
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