Question

(a) What is meant by (i) principal focus of a convex mirror, and (ii) focal length of a convex mirror?
(b) Draw diagram to show the action of convex mirror on a beam of parallel light rays. Mark on this diagram principal axis, focus F, centre of curvature C, pole P and focal length f, of the convex mirror.​

Answer 1

Step-by-step explanation:

• (a) (i) Principal focus of a concave mirror. The principal focus of a concave mirror is a point on its principal axis to which all the light rays are parallel and close to the axis converge after reflection from the concave mirror.

• (ii) Focal length of a concave mirror. The focal length of a concave mirror is the distance between its pole and the principal focus

Answer 2

Answer:

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