# Mention three differences between concave and convex mirrors

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by Bhavya5082000

2016-03-05T21:17:19+05:30
A convex mirror, or diverging mirror, is a curved mirror in which the reflective surface bulges toward the light source. A collimated (parallel) beam of light diverges (spreads out) after reflection from a convex mirror, since the normal to the surface differs with each spot on the mirror. Images are always virtual (rays haven't actually passed though the image), diminished (smaller), and upright . These features make convex mirrors very useful: everything appears smaller in the mirror, so they cover a wider field of view than a normal plane mirror does as the image is "compressed".

A concave mirror, or converging mirror, has a reflecting surface that bulges inward (away from the incident light). Unlike convex mirrors, concave mirrors show different types of image depending on the distance between the object and the mirror itself. These mirrors are called "converging" because they tend to collect light that falls on them, refocusing parallel incoming rays toward a focus. This is because the light is reflected at different angles, since the normal to the surface differs with each spot on the mirror.
2016-03-05T21:24:18+05:30

Convex and concave are two types of spherical mirrors. A spherical mirror is actually a mirror whose surface forms a part of a hollow sphere. The sphere can be made from any type of polished metal surface like glass. The center of the mirror is called the pole and the radius through the pole is called the axis of the mirror.

A convex mirror is a spherical mirror in which the reflecting surface and the center of curvature lie on the opposite sides of the mirror. In other words, if the mirror coating lies in the inside of the spherical surface, then it is known as a convex mirror. It is also known as a diverging mirror as – when a beam of light is directed on a convex mirror, the mirror allows the initial parallel rays to diverge after striking it. They are known to provide wider views, and therefore are primary used as automobile side mirrors.

A concave mirror is a spherical mirror in which the reflecting surface and the center of curvature fall on the same side of the mirror. In other words, if the mirror coating lies outside of the spherical surface, then it is known as a concave mirror. This type of mirror forms a part of the simplest image forming optical system. Therefore, it has many applications. The image in a concave mirror is seen inverted. However, the image can be of the same size or magnified; depends upon the distance from the concave mirror.

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