A girl stands 2.5 m infront of a plane mirror. If she sees someone else 2.0 m behind her, how far is she from the image of that person?
0.5
0.5m
To find the distance of the girl from the image of the person, we need to understand a few concepts.
When we look at a mirror, we see a virtual image formed behind the mirror. In this case, the plane mirror reflects light in such a way that the image appears to be located exactly the same distance behind the mirror as the object is in front of it. This is known as the virtual image.
In this scenario, the girl stands 2.5 m in front of the plane mirror. As per the concept of virtual images, the image of the person will be formed 2.5 m behind the mirror.
Therefore, the distance of the girl from the image of the person is also 2.5 m.