Question

What is the focal length of plane mirror
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Hi sweetu….
Please see the attachment

Answer 1

Answer:

infinity is the answer

Explanation:

hope it helps

Answer 2

Answer:

infinity

Explanation:

A plane mirror is a flat reflecting surface. Thus, in the case of a plane mirror, when the parallel rays of light strike the mirror they get reflected back parallel to each other. So, they never meet or we can say they meet at infinity. So, the focal length of the plane mirror is Infinity.