If a street lamp at a distance of 100 meters from you is 10,000 times more luminous than a firefly,what is the distance the firefly has to be from you so it looks as bright as the street lamp at 100 meters?

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The Answer of If a street lamp at a distance of 100 meters from you is 10,000 times more luminous than a firefly,what is the distance the firefly has to be from you so it looks as bright as the street lamp at 100 meters?

If a Street Lamp at a Distance of 100 Meters