Question

Take some water in a glass tumbler. Keep a pencil in it. Look at the glass tumbler from one side of a glass and top of the glass .how does it look? Do you find any difference between the two views

Answer 1

Answer:

Yes,there is difference the pencils appears to be divided in two parts,where the part of pencil in water appears to have shifted.

Explanation:

This happens due to the refraction of light that is light travels through different speeds in different mediums. when the light Ray is passing through air it has a different speed which is generally taken as the speed of light in vacuum when it passes through water, the speed of light decreases and thus the light ray shifts towards the normal which is the imaginary perpendicular line drawn between the light ray and the surface.Thus the pencil appear to have shifted.

I hope it helps .