Why does the size of an image in a plane mirror not change when drawn on paper?

In summary, when an object is moved away from a plane mirror, its size appears smaller in the mirror. However, when drawing the image on paper from different positions, the size of the image remains the same. This is because the image in a plane mirror appears to be the same distance behind the mirror as the object is in front of the mirror. This relationship between size and distance is why the image in a mirror can appear smaller than the actual object.
  • #1
Puneeth423
51
0
When an object is moved away from a plane mirror, its size decrease when seen in the mirror. But, when we draw image on paper for an object in different positions in a plane mirror, the size of the image doesn't seem to change. Why? Will the size change or not?
 
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  • #2
The size of the image doesn't change, but it looks smaller since it is farther away.
 
  • #3
The image in a (plane) mirror will appear to be the same distance behind the mirror as the object is in front of the mirror. Stand near a mirror and look at a distant object and then at its image. They will appear pretty much the same size.
Stand by the same object and look at its image in the same mirror and the image will look much smaller than the object.
Size and (apparent) distance 'go together'.
 

FAQ: Why does the size of an image in a plane mirror not change when drawn on paper?

What is a plane mirror?

A plane mirror is a flat, smooth reflective surface that reflects light rays in a regular manner, creating an image of objects placed in front of it.

How do images appear in a plane mirror?

Images in a plane mirror appear to be the same distance behind the mirror as the object is in front of it, and they appear to be the same size as the object.

Are images in a plane mirror real or virtual?

Images in a plane mirror are virtual, meaning they cannot be projected onto a screen. They only exist as an illusion in our minds.

How does the size of an image in a plane mirror compare to the size of the object?

The size of an image in a plane mirror is the same as the size of the object, as long as the object is placed at the same distance from the mirror as the distance between the mirror and the image.

What happens to the image in a plane mirror if you move closer or farther away from the mirror?

If you move closer to the mirror, the image will appear larger. If you move farther away, the image will appear smaller. This is because the distance between the object and the mirror, as well as the distance between the mirror and the image, are changing.

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