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Physics

Grade-10

Easy

Question

A beam of light parallel to the principal axis of a convex mirror appears to diverge from a single point after reflection, at a distance of 56 cm from the pole of the mirror. The radius of curvature of the mirror is ____ cm.

hint Hint:

112

The correct answer is: 112

The distance between the focus and the pole of the mirror is called focal length.
Radius of curvature is twice the focal length.
Given focal length=56 cm
Hence, radius of curvature= 2×56 =112 cm

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