Lesson: Chapter 5 — Optics

5.2. Curved (spherical) mirrors 5 of 5 Reset answers

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Question 5

Where is the focus of a spherical mirror?

A At the pole B Twice as far as the centre of curvature C Midway between the pole and the centre of curvature D At the centre of curvature

The right answer is the one marked above.

Midway between the pole and the centre of curvature. That is why the radius of curvature is twice the focal length.

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