Does image size in a mirror change with distance? Why? Why not?

Question

As you slowly move away from a mirror can you see more of yourself - or do you see the same amount. Please explain.

Answer 1

A mirror is simply a surface that reflects light back towards the point of its emission. The size of the image within the mirror exists within relation to the size of the mirror (a 2 ft. tall mirror can only reflect naturally the image of an object up to 2ft. tall) and the proximity of the object to the mirror.

The mirror works in relationship to the object as a that of a diminishing triangle, presented as >. What that means is that the greatest point of reflection is when the object is directly in front of the mirror, touching it. As the object moves away, the distance between the object and the mirror 'shrinks' the visual image of the object. This is because the reference points of the mirror expand as the object pulls away, like thus < . When the reference points (as determined by distance) increase, the object shrinks, when the reference points diminish, the object grows.

Answer 2

In a plane mirror the distance of the image behind the mirror is equal to the distance of the object (you) in front of the mirror.

As you move away from the mirror, your image moves still behind the mirror.

Since distant objects looks smaller in size than the same object when it is near, size of your image seems to shrink when you are away from a mirror.


Through a small hole in the window pane, we can see a huge tree out side. That does not mean that the size of the tree equals the diameter of the hole in the window pan.

Similarly, though the image looks to be small, in reality, it is of the same size.

Answer 3

yes , image change in a mirror because of the light reflecting against you to the mirror from where you are standing . the position from where you are standing effects the image beind displayed on a mirror. incident ray =reflected ray. if u want to check for more details about the effects of mirrors, check it out at singapore's library and find a book title known as physics, from there it willexplain everything to you related to your questions.