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The centre of curvature of a concave mirror lies _______ the mirror, whereas it lies _______ the mirror for a convex mirror.
Question

The centre of curvature of a concave mirror lies _______ the mirror, whereas it lies _______ the mirror for a convex mirror.

A.

behind, behind

B.

behind, in front of

C.

in front of, in front of

D.

in front of, behind

Correct option is D

The correct answer is: (D) in front of, behind
Explanation:
  • For a concave mirror, the center of curvature lies in front of the mirror. This is because the reflective surface is on the inside of the spherical mirror, and the center of curvature lies along the principal axis, extending towards the mirror's surface.
  • For a convex mirror, the center of curvature lies behind the mirror. The reflective surface bulges outward, so the center of curvature lies behind the mirror along the extended principal axis.
Information Booster:
  • A convex mirror diverges light rays, making the center of curvature virtual and located behind the mirror.

  • Focal points for concave mirrors are real and in front of the mirror, while for convex mirrors, they are virtual and appear behind the mirror.

  • Concave mirrors are converging mirrors and used for applications such as satellite dishes, makeup mirrors, and flashlights.

  • Convex mirrors are diverging mirrors, useful for security mirrors and vehicles' side mirrors because they give a wider field of view.

  • The principal focus for concave mirrors is real, while for convex mirrors, it is virtual and behind the mirror.

Additional Information:

  • Behind, behind: This option would apply to two convex mirrors.

  • In front of, in front of: This would only apply to concave mirrors.

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