Question

Focal length of a plane mirror is​

Answer 1

Answer:

Mark me brainlest

Explanation:

infinity

The focal length of a plane mirror is infinity as the image can be formed at an infinite distance inside the mirror. A plane mirror can be recognised as a spherical mirror of infinite radius of curvature. Focal length is half of the radius of curvature and hence it is infinity.

Answer 2

Answer:

$the \: focal \: length \: of \: the \: plane \: mirror \: is \ \\ : infinity \: its \: optical \: power \: is \: zero. \\ \\ \\ hope \: itz \: help \: u..$