Question

if the focal length of a convex mirror is 25 CM then what is its radius of curvature

Answer 1

As per the question, the focal length of the convex mirror is 25 cm.

Hence, focal length f = 25 cm.

We are asked to calculate the radius of curvature of the mirror.

The radius of curvature of any spherical mirror is twice the focal length of that respective mirror.

Mathematically radius of curvature [R] = 2×f

                                                                = 2×25 cm

                                                                = 50 cm.

Hence, the radius of curvature of convex mirror asked in the question is 50 cm.

Answer 2

Answer:

Given :- focal length (f) i.e, 25 cm

To find :- radius of curvature (r)

Solution :- as we know that

f=r/2

or we can write f×2 =r

→ 25×2 = r

→ 50 = r

Explanation:

therefore radius is 50 cm

hope it helps u :)