Question

The focal length of a concave mirror is 3.5cm. what is its radius of curvature. *​

Answer 1

Answer:

the radius of curvature is 7cm.

Explanation:

as we know that, radius of curvature is double of focal length.

so radius of curvature=2x3.5cm

=>radius of curvature=7cm.

by dev gupta

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Answer 2

Answer:

focal length of the concave mirror = 3.5cm

radius of curvature R=2f

=2*3.5

=7cm