Question

5. 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:

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

Answer 2

Answer:

hey!!

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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