Beams of Light Parallel to the Axis of the Parabolic

question 48

Short Answer

Beams of light parallel to the axis of the parabolic mirror shown in the figure strike the mirror and are reflected. Find the distance from the vertex to the point where the beams concentrate.
​ ft, ft
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The focus is __________ in. from the vertex on the axis of the parabola.

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Definitions:

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