1.

On a glass plate, a light beam is incident at an angle of 60^(@). If the reflected and the refracted rays are mutually perpendicular, the refractive index of glass is

Answer»

`(sqrt3)/(2)`
`sqrt3`
`(3)/(2)`
`(1)/(sqrt3)`

SOLUTION :Since `anglei=60^(@)`, hence angle of reflection `r=60^(@)` and as per question angle of REFRACTION `r.=90^(@)-r=90^(@)-60^(@)=30^(@)`.
`RARR""N=(sin i)/(sinr.)=(sin 60^(@))/(sin 30^(@))=sqrt3`


Discussion

No Comment Found

Related InterviewSolutions