What is meant by refraction of light ? State the laws of refraction. Show that emergent ray from a glass slab is parallel to incident ray.

Give the laws of refraction. Show that emergent ray from a glass slab is parallel to incident ray.

When a light ray emerges out after refraction at a rectangular glass slab, it is parallel to the incident ray. Why ?

Draw diagram showing that the refraction of a light ray through a glass slab.

Discuss refraction through a glass slab and show that emergent ray is parallel to incident ray but displaced?

What would be the path of refracting ray and emergence ray, if two glass slabs kept attached to each other are used?

What would be the path of refracting ray and emergence ray, if two glass slabs kept attached to each other are used?

Refractive index of slab R if refracted ray cd is parallel to incident ray ab, is

Answer the following questions In the case of refraction og light through a glass slab, the emergent ray is parallel to the incident ray , but it is displaced sideways. Why does this happen?