A ray incident at an angle of incidence 60^@ enters a glass sphere of refractive index mu=sqrt3. This ray is reflected and refracted at the further surface of the sphere. The angle between reflected and refracted rays at this surface is

A ray incident at an angle of incidence 60^@ enters a glass sphere of

1.	A ray incident at an angle of incidence 60^@ enters a glass sphere of refractive index mu=sqrt3. This ray is reflected and refracted at the further surface of the sphere. The angle between reflected and refracted rays at this surface is
Answer» SOLUTION :`mu= (sin i)/ (sin r)` `therefore sin r= (sin i)/mu= (sin 60^@)/sqrt3=1/2` `therefore r=30^@, PC=QC, therefore angleCPQ=anglePQC=angler=30^@` ANGLE between refected RAY QR and refracted ray QS at the other face `=180^@-r-60^@=180^@-30^@-60^@=90^@`