After reflection from a concave mirror, a plane wavefront becomes

Cylindrical

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Spherical

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Remains planar

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None of the above

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Solution

The correct option is C Spherical
according to diagram, all the ray after reflection from the curve mirror moving towards the focus point of the mirror. We know that ray originating at a point and ray coming from point sources always make spherical wavefront.
In this given case ray are meeting at same point ‘F’. So wavefront will be form spherical.

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Similar questions

A B

A ray starting from the focus of a concave mirror becomes parallel to the principal axis after reflection.

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