Which type of mirror has negative focal length?

Convex mirror

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Concave mirror

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Plane mirror

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None

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Solution

The correct option is B Concave mirror
Concave mirror has negative focal length.

Answer-(B).

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Similar questions

Which type of mirror has : (a) positive focal length ? (b) negative focal length ?

Why focal length of convex mirror and convex lens is positive while concave mirror and concave lens negative?

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