Question

What is the difference between concave and convex mirrors?

Answer 1

concave mirrors are converging and field view is less.
convex mirrors are diverging and field view is more.

Answer 2

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When an object is near a plane mirror, the image is erect, virtual and of the same size at the object. A concave mirror gives a magnified and erect image of a nearby object whereas a convex mirror gives an erect and diminished image. For the rear view mirror in a car.