What is the focal length of a Plane mirror?
Aksharkumar:
the length which varies from 1st focal point to 2nd focal point of a plane mirror ..
is known as focal length of a plane mirror
tq for ur help
welcm bro
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HERE'S YOUR ANSWER
Let's take a mirror in the shape of a sphere having its diameter so large that it tends to infinity.
Now lets imagine that we cut a small incremental length from the surface area of the spherical mirror.
If we compare the part cut, we will find that, in comparison to the spherical mirror the part cut will appear as a plane mirror.
In short, a plane mirror can be considered as a spherical mirror of infinite diameter.
It means that it will have an infinite radius of curvature.
Hence, we can conclude that a Plane Mirror has an *Infinite* focal length.
HOPE HELPED!!
Let's take a mirror in the shape of a sphere having its diameter so large that it tends to infinity.
Now lets imagine that we cut a small incremental length from the surface area of the spherical mirror.
If we compare the part cut, we will find that, in comparison to the spherical mirror the part cut will appear as a plane mirror.
In short, a plane mirror can be considered as a spherical mirror of infinite diameter.
It means that it will have an infinite radius of curvature.
Hence, we can conclude that a Plane Mirror has an *Infinite* focal length.
HOPE HELPED!!
tq <3
this was for the Brainly students
as the question is important for boards
thats really important xD
lol
Answered by
0
Answer:
Explanation:
Focal length = f = R/2
R - Radius of curvature of mirror
f = infinite(symbol) / 2
= Infinite
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