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Solve the Problem. -A Reflecting Telescope Contains a Mirror Shaped Like a Paraboloid

Question 10

Multiple Choice

Solve the problem.
-A reflecting telescope contains a mirror shaped like a paraboloid of revolution. If the mirror is 16 inchesacross at its opening and is 5 feet deep, where will the light be concentrated?


A) 0.3 in. from the vertex
B) 3.2 in. from the vertex
C) 1.6 in. from the vertex
D) 0.8 in. from the vertex

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