Table Edge

What is the height of lamp over a table with a 15 inch radius that will maximize intensity at the edge?

A lamp is hung above a circular table of radius r = 15in at a variable height h. As h varies, the distance l from the lamp to the edge of the table and the angle also vary.
It has been found that the intensity I of the light at the edge of the table is given by the formula I = k times (the sine of the angle divided by the length squared) , where k is a positive constant. We want to put the lamp at just the right height to maximize the intensity of the light at the edge of the table.

Refer to this link to use the intensity formula:http://www.tpub.com/content/construction/14027/css/14027_155.htm

If you want to maximize the intensity, then take the derivative and let that be zero. Then, try to find the value of the height.

Trimming Edge Banding on the Routing Table

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