Question

What is the angle between incident ray of light and emergent ray of light when a ray of light falls obliquely on the glass slab?

Answer 1

When light falls obliquely to the glass slab the angke formed is alyas 45 degrees

Answer 2

The incident ray and emergent ray are parallel to each other. So if incident ray ray comes obliquely on the glass slab angel between incident ray and emergent ray is 0°