Home
Class 12
PHYSICS
A ray of light travelling in a transpare...

A ray of light travelling in a transparent medium of refractive index `mu`, falls on a surface separating the medium from air at an angle of incidence of `45^(@)`. For which of the following value of `mu` the ray can undergo total interval reflection ?

A

`mu=1.33`

B

`mu=1.40`

C

`mu=1.50`

D

`mu =1.25`

Text Solution

Verified by Experts

The correct Answer is:
C
For TIR `45 ge theta _(C) implies sin 45 ge sin theta _(c)`
`implies (1)/(sqrt(2))ge(1)/(mu)implies mu ge sqrt(2)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A ray of light travelling in a transparent medium f refractive index mu , falls on a surface separating the medium from air at an angle of incidence of 45^(@) . For which of the following value of mu the ray can undergo total internal reflection ?

A ray of light travelling in a transparent medium f refractive index mu , falls on a surface separating the medium from air at an angle of incidence of 45^(@) . For which of the following value of mu the ray can undergo total internal reflection ?

A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence of 45^(@) . The ray undergoes total internal reflection. If n is the refractive index of the medium with respect to air, select the possible value of n from the following.

A ray of light passes from vaccum into a medium of refractive index n. If the angle of incidence is twice the angle of refraction, then the angle of incidence is

A ray of light falls on a transparent glass slab of refractive index sqrt (2) . If the reflected and refracted rays are mutually perpendicular, then the angle of incidence is

A ray of light strikes a transparent rectangular slab of refractive index sqrt(2) at an angle of incidence of 45^(@) . The angle betweent the reflected and refracted rays is

A ray of light is incident as a normal ray on the surface of separation of two different mediums. What is the value of the angle of incidence in this case ?

A ray of light is incident on a transparent glass slab of refractive index sqrt3 . If the reflected and refracted rays are mutually perpendicular, what is the angle of incidence?

The refractive index of the core of an optical fibre is mu_(2) and that of the cladding is mu_(1) . The angle of incidence on the face of the core of that the light ray just under goes total internal reflection at the cladding is

A ray of light, travelling in a medium of refractive index 'mu_, is incident at an angle i on a composite transparent plate consisting of three plates of refractive indices mu_1,mu_2 and mu_3. The ray emerges from the composite plate into a medium of refractive index mu_4, at angle x. Then,