When an object is placed on centre of curvature the size of image is ………………

For a concave mirror, the focal length is ……………

The scientist who used mirrors to burn ships was ……………….

……………… mirror is used in solar cookers.

The light ray which passes through ………………. will reflect in the same path from a spherical mirror.

The rear view mirror used in vehicles is

A radius drawn from the centre of the circle to point on the circle will be ……………… to the tangent to that point on the circle.

Radius of curvature = …………… × focal length

Which of the following images cannot be caught on the screen?

Which of the following mirrors is used by dentists?