Question

Both a spherical mirror and a thin spherical lens have a focal length of -15 cm. what
type of mirror and lens are these?

Answer 1

answer is concave mirror and concave lens

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Answer 2

Answer:

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Explanation:

By convention, the focal length of a concave mirror and a concave lens are taken as negative. Hence, both the spherical mirror and the thin spherical lens are concave in nature.

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