A painting in a living room needs to be lighted at 250 lux.

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A painting in a living room needs to be lighted at 250 lux. If the light is incident normally on the painting from a distance of 6 m, then the intensity of light source required (in candela) is

1. 1500
2. 3000
3. 6000
4. 9000

Correct Option: D

Intensity of light source = 250 × 6² = 9000 candela