Question

how will you distinguish between a convex,concave and plane mirror​

Answer 1

Convex mirror :

• The spherical mirror with outward curved reflecting the surface is called convex mirror.

• A beam of light generally diverges after reflection from this surface hence it is also called divergent mirror.

• Example - the outer curved surface of a shining spoon can be treated or considered as convex mirror.

Concave mirror :

• The spherical mirror with inward curved surface reflecting surface is called concave mirror.

• A beam of light generally converges after reflection from such surfaces and it is also called convergent mirrors.

• Example - The inner curved surface of a shining spoon can be considered as a concave mirror.

Plane mirror :

• If the reflecting surface of a mirror is plane, then the mirror is called a plane mirror.

• It is always virtual and erect.

• The size of image is equal to the size of the object.

• The distance between the image and the mirror is equal to the distance between the object and the mirror.

• The image is literally inverted ie. left seems to be right and vice versa.

• Plane mirrors are commonly used as a looking glass, in making periscopes, kaleidoscopes,etc