Question

1. If the focal length of a concave mirror is 60 cm, what is the radius of curvature?

Answer 1

Answer:

Hope it help

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According to relation between focal length and radius,

F=R/2

SO ,

RADIUS(R)=2F

=

$2 \times 60$

=120cm

=1.2m

Explanation:

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Answer 2

Answer:

The mirror has a 120-centimeter radius of curvature.

Explanation:

• The radius of curvature refers to the diameter of the hollow sphere in which the mirror/spherical mirror is enclosed.
• For spherical mirrors, the radius of curvature is found to be twice the focal length. i.e.

                                         $R=2f$     (1)

Where,

R=radius of curvature

f=focal length of the mirror

From the question, we have that the focal length of the mirror is 60cm. So,

                                 $R=2\times 60=120cm$

As a result, the mirror's curvature radius is 120cm.

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