Question

the focal length of plane mirror is​

Answer 1

Good morning dear♡

The focal length of plane mirror can be considered to be limit of eother a concave or convex spherically curved mirror as the radius , and therefore the focal length becomes infinite.

• Hope it helps u

Answer 2

Answer:

Mark me Brainliest.

ans-

INFINITY is the focal lenth. Focal

length is the point half of radius. This

radius is obtained by extenteding the

edges of lens to obtain a imaginary

circle. And then we get center of circle,

C. Focal lenth is half of radius. So,

technically a plane mirror never going

to be a circle. But, in hypothetically we

say it will be a circle of infinite radius

Hence, focal length is also INFINITE.