Ask Question
18 March, 05:46

Broadcasters use a parabolic microphone on football sidelines to pick up field audio for broadcasting purposes. A certain parabolic microphone has a reflector dish with a diameter of 14 inches and a depth of 4 inches. If the receiver of the microphone is located at the focus of the reflector dish, how far from the vertex should the receiver be positioned?

+5
Answers (1)
  1. 18 March, 06:53
    0
    Given:

    diameter = 14 inches

    depth = 4 inches

    radius = 14 / 2 = 7 inches

    (x, y) → (7,4)

    y = 1/4c * x²

    4 = 1/4c * 7²

    4 * 4c = 49

    16c = 49

    c = 49/16

    c = 3.0625 inches

    The receiver should be positioned 3.0625 inches from the vertex.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Broadcasters use a parabolic microphone on football sidelines to pick up field audio for broadcasting purposes. A certain parabolic ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers