Why is a looking glass always a plane mirror?

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Solution

A plane mirror reflects light rays from an object, forming an image of the object.
The image formed by a plane mirror is imaginary perpendicular and the same size as the object, so the object and its image appear equidistant from the mirror.
That's why is a looking glass always a plane mirror.

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Why is a looking glass always a plane mirror?

A plane mirror reflects light rays from an object, forming an image of the object. The image formed by a plane mirror is imaginary perpendicular and the same size as the object, so the object and its image appear equidistant from the mirror.That's why is a looking glass always a plane mirror.

A plane mirror reflects light rays from an object, forming an image of the object.
The image formed by a plane mirror is imaginary perpendicular and the same size as the object, so the object and its image appear equidistant from the mirror.
That's why is a looking glass always a plane mirror.