Question

Draw a neat and labelled diagram to show the path of a ray of light in air and glass when the ray is incident obliquely on a glass slab. Show the 

(i) incident ray 

(ii) refracted ray 

(iii) emergent ray 

(iv) angle of incidence 

(v) angle of refraction 

(vi) angle of emergence in the diagram.

(OR)

Draw a neat and labelled diagram to show refraction of light through a glass slab.

Answer 1

The path of the ray of light in air and glass when the ray is incident obliquely on a glass slab

In Fig. i = angle of incidence, r = angle of refraction and e = angle of emergence.