Multiple choice

Which of the following terms related to the reflecting surface of a spherical mirror forms a part of the sphere?

  1. Aperture

  2. Principal axis

  3. Focal length

  4. Centre of curvature

  5. Radius of curvature
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A lens, either a convex lens or a concave lens, has two spherical surfaces.

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