Question

what happens when light is refected? how does it appear to us

Answer 1

When the light ray strike the boundary of two medium then part of light ray return back to same medium which is known as reflection as shown in above diagram.

The angle at which light hits a reflecting surface is called the angle of incidence, and the angle at which light bounces off a reflecting surface is called the angle of reflection

For example, if you look at a bird, light has reflected off that bird and travelled in nearly all directions. If some of that light enters your eyes, it hits the retina at the back of your eyes. An electrical signal is passed to your brain, and your brain interprets the signals as an image.