Question

A point object is placed at a distance of 20 cm from a convex mirror of focal length 20 cm. The image will form at:-
(a) at infinity
(b) at focus
(c) at the pole
(d) behind the mirror

Answer 1

(a) at infinity

as the object is placed on focus as focal length = the object distance

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Answer 2

Explanation:

At focus

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