Question

define cocave mirror explanation in brief​

Answer 1

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A concave mirror is a mirror that is curved inward in the middle. ... The law of reflection is still true for concave mirrors but because the mirror's surface is curved, the angle at which the light hits the surface, also known as the incident angle, is different depending on which part of the mirror the light hits.

Answer 2

Answer:

Concave Mirror

If a hollow sphere is cut into parts and the outer surface of the cut part is painted, then it becomes a mirror with its inner surface as the reflecting surface. This type of mirror is known as a concave mirror.

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.