katjimenez katjimenez

03-08-2016
Physics

contestada

the illuminance on a surface is 6 lux and the surface is 4 meters from the light source. What is the intensity of the saurce?

Respuesta :

Edufirst Edufirst

17-08-2016

L = illuminance
A = surface
i = intensity

L = i / A ==: i = L * A

i = 6 lux * 4 m^2 = 24 lumen

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