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A spherical mirror and a thin spherical ...

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

B

both convex

C

the mirror is concave and the lens is convex

D

the mirror is concave ,but the lens is concave

Text Solution

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The correct Answer is:
A
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