For a ray of light refracted through a prism of angle `60^(@)`, the angle of incidence is equal to the angle of emergence, each equal to `45^(@)`. Find the refractive index of the material of the prism.

Explanation

Here `i=e=45^(@)`
Hence `r=r.orr=A/2=30^(@)`
`thereforemu=sini/sinr=(sin45^(@))/(sin30^(@))=1/sqrt2xx2=sqrt2`