The filament of an automobile headlight is at the focus of a parabolic reflector, which
Chapter 10, Problem 103(choose chapter or problem)
The filament of an automobile headlight is at the focus of a parabolic reflector, which sends light out in a straight beam. (See figure.)
(a) The filament of the headlight is 1.5 inches from the vertex. Find an equation for the cross section of the reflector.
(b) The reflector is 8 inches wide. Find the depth of the reflector.
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