Question

a spherical mirror and a thin spherical lens have each a focal length of - 15 CM .the mirror and the lens are likely to be ​

Answer 1

Answer:

A spherical mirror and a thin spherical lens have each a focal length of –15cm. The mirror and the lens are likely to be. (a) both concave.

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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