(Answered) Problem a light is located over the center of circular

Engineering

Problem: A light is located over the center of circular table of diameter d = 8 feet (see figure). Find the height h of the light source such that the illumination I at the perimeter of the table is maximum when:

I = k sin α/S²

Where s is the slant height, α is the angle at which the light strikes the table, and k is a constant.

88_perimeter of the table.jpg

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