Question

What is the magnification of the images formed by a plane mirror and why?

Answer 1

the magnification of the images formed by a plane mirror is 1 because the size of image is same as that of the object and the distance between image-mirror and object-mirror is also the same.

Answer 2

The magnification of an image formed with the help of a plane mirror is +1.

Magnification:

  The magnification of a mirror is the growth in the size of the image of an object.

A plane mirror is a mirror that includes a flat reflective floor. The image fashioned by way of a plane mirror is virtual and of the identical size as that of the item.

The magnification of a mirror is the ratio of the distance of the image from the mirror and the distance of the object from the mirror.

$m = -\frac{v}{u}$, where $m$ is the magnification, $v$ is the distance of the image from the mirror and $u$ is the distance of the object from the mirror.

In the case of a plane reflect, the distance of the object from the mirror is negative. Also, the distance of the image from the mirror is the same as the distance of the object from the mirror.

i.e., $m = -\frac{v}{(-u)}$

Therefore, the magnification of a plane mirror is +1.

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