Question

What are the characteristics of concave mirror ?

Answer 1

1. They always produce real and inverted images except when an object is placed between the mirror pole and the focus which gives erect virtual images. (for real objects)
2. They produce magnified, diminished and same size images.
3.A parallel beam of incident light is concentrated on its focus and thus such a mirror is called a convergent mirror. Also a light source placed at the focus produces a parallel light beam.
4.Sign convention: The focal length and radius of curvature are taken as negative.

Answer 2

Answer:

. 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 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 the real images is formed.

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

Explanation:

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