Question

Draw a Concave and Convex Lens, mark and define the following terms:

a. Centre of Curvature

b. Principal Axis

c. Principal Focus

d. Diverging Lens

e. Converging Lens

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Answer 1

Answer:

(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

solution

Explanation:

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