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A spherical mirror and a thin spherical lens have each a focal length of -15 cm. The mirror and lens are likely to be

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asked Jan 19, 2018 in Physics by Kundan kumar (49,132 points) ● 34 ● 384 ● 1027

A spherical mirror and a thin spherical lens have each a focal length of -15 cm. The mirror and lens are likely to be

(a) both concave (b) both convex
(c) the mirror is concave and the lens is convex
(d) the mirror is convex and the lens is concave

1 Answer

+1 vote
answered Jan 19, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 21
selected Jan 19, 2018 by Kundan kumar
 
Best answer

Concave mirror and concave lens both have negative focal length, choice (c) is correct

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