How much Foot candles light is required for minimum illumination to get a satisfactory vision?: (A) 15-20, (B) 15-Oct, (C) 20-25, (D) 25-30
Answer is A. 15-20 foot candle light is required for min illumination to get a satisfactory vision. 1 Foot candle = 10.76 Lux DLF (day light factor) in a living room should be >= 8% & min >= 10% in kitchen. DLF is a comparison of light in room compared from natural light outside.