Question

A paperweight in the form of a hemisphere of radius 3.0 cm is used to hold down a printed page. An observer looks at the page vertically through-the paperweight. At what height above the page will the printed letters near the centre appear to the observer ?

Solve the above problem if the paperweight is inverted at its place so that the spherical surface touches the paper.

Answer 1

[Treating it as a simple refraction problem because the upper surface is flat and the spherical surface is in contact with the object]