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A 200 candle power lamp is hung 4 m above the centre of circular area of 5 m diameter. The illumination at centre of the area is
13.5 lux.
12.5 lux.
17.5 lux.
18.5 lux.
12.5 lux.
Practice and solve "A 200 candle power lamp is hung 4 m above the centre of circular area of 5 m diameter. The illuminat..." for Electrical - Utilization Of Electrical Energy. The correct answer is Option B: 12.5 lux.. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Option **(b) **