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23 Nov 2019

What do we call the distortion on a mirror that comes from not using a parabola?

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Beverley Smith
Beverley SmithLv2
11 Apr 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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The mirror in an automobile headlight has a parabolic cross-section, with the lightbulb at the focus. On a schematic, the equation of the parabola is given as At what coordinates should you place the lightbulb?

While looking at her image in a cosmetic mirror, Dina notes that her face is highly magnified when she is close to the mirror, but as she backs away from the mirror, her image first becomes blurry, then disappears when she is about 40.0 cm from the mirror, and then inverts when she is beyond 40.0 cm. Based on these observations, answer the following questions about the mirror.

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(c) What is the radius of curvature of the mirror?
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