Question

What is the focal length
of plane mirror? *
​

Answer 1

Focal length of a plane mirror is infinity. A plane mirror can be considered as a spherical mirror of infinite radius of curvature. Focal length is half of radius of curvature and hence it is infinity...

hope this answer helps you...❤❤✌✌

Answer 2

Answer:

Infinity

Explanation:

the focal length of a plane mirror is infinity, it's optical power is zero

hope this may helps you :-D