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IIT JEE MAINS ADVANCE™
3. A point source of 100 candela is held
3. A point source of 100 candela is held 5 m above a sheet of | IIT JEE MAINS ADVANCE™
3. A point source of 100 candela is held 5 m above a sheet of blotting paper which reflects 75% of incident light. What is the illuminance of blotting paper ?
Anonymous Quiz
20%
4 lux
40%
4 phot
20%
3 lux
20%
3 phot
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