Question

9.24 Write laws of reflection. Draw and explain the
ray diagram formed by a convex. mirror when
a) object is at infinity b) object is at finite distance from the mirror
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Answer 1

Answer:

Laws of reflection are:

(i) The incident ray, the reflected ray and the normal ray at the point of incidence, lie in the same plane.

(ii) The angle of incidence is equal to the angle of reflection.

when image is at infinity:

When the object is at infinity, the image is formed at focus. 'F'.  It is virtual image and diminished in size.

'when image at a finite distance from mirror:

When the object is at finite distance the image is formed behind the mirror, it is virtual image and diminished in size.

Explanation: