Question

A spherical mirror has focal length is + 25 cm. What type of mirror is this? What is relation between focal length

and radius of curvature?​

Answer 1

Explanation:

For a spherical mirror the principal focus (F) lies exactly mid-way between the pole (P) and centre of curvature (C). So, the focal length (f) of a spherical mirror is equal to half of its radius of curvature (R).

f = R/2

R = 25cm (Given)

f =?

We know that

f = R/2

= 25/2

f =12.5cm

Answer 2

Answer:

convex mirrors is the answer