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Luminous intensity for a bulb off 40 watt at 110 watt is 11.0 1 Luminous/watt . the distance at which intensity of illumination is 5 lumen/mt^2 will be:

Luminous intensity for a bulb off 40 watt at 110 watt is 11.0 1 Luminous/watt . the distance at which intensity of illumination is 5 lumen/mt^2 will be:

Grade:12

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
There is a confusion between 40 watt and 110 watt. If I assume 110 bolt and 40 watt, 
I am getting my answer as 9.39 metres.
 
Regards
Arun

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