I really don't know how I can speak about the physics in optical illusions. basically all I need is just 3 images and to explain the physics behind it. Can anyone help?
I don't know which illusion you are using, but here's a really simple example:
Say you have a glass of water with a straw in it.
Why does the straw get "cut" sometimes? Does the angle of the straw matter? Does the angle of the light? What about the angle of the viewer? Does the same thing happen with sound?