Question

define cocave mirror explanation in brief​

Answer 1

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A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light

Answer 2

Answer:

Characteristics of Concave Mirrors

Light converges at a point when it strikes and reflects back from the reflecting surface of the concave mirror. Hence, it is also known as a converging mirror.

When the concave mirror is placed very close to the object, a magnified and virtual image is obtained.

However, if we increase the distance between the object and the mirror then the size of the image reduces and a real image is formed.

The image formed by the concave mirror can be small or large or can be real or virtual.