Question

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

A
both concave
B
both Convex
C
the mirror is concave and lens is convex
D
the mirror is convex but lens is concave

Solution

## The correct option is A both concaveNegative focal length is a characteristic of concave mirror and concave lens. Hence, both mirror and the lens are concave.ScienceNCERTStandard X

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