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Amith2006
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# The intensity of direct sunlight on a surface normal to the rays is Io. What is the intensity of direct sunlight on a surface whose normal makes an angle of 60 degrees with the rays of the sun?
I think the answer is Io itself because for an isotropic point source of light the luminous intensity is the same in all directions. Is it correct?
I think the answer is Io itself because for an isotropic point source of light the luminous intensity is the same in all directions. Is it correct?