A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence 45${}^{\circ }$. The ray undergoes total internal reflection. The possible value of refractive index of the medium with respect to air is

Q. A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence ${45}^o$ and undergoes total internal reflection. lf $\mu$ is the refractive index of medium the possible values of $\mu$ are

Q. A ray of light traveling in a transparent medium falls on a surface separating the medium from air, at an angle of ${45}^{\circ }$. The ray undergoes total internal reflection. if 'n' is the refractive index of the medium with respect to air, select the possible values of 'n' from the following.

Q. A ray of light travelling in a transparent medium of refractive index , falls on a surface separating the medium from air at an angle of incidence of ${45}^o$. For which of the following value of refractive index the ray can undergo total internal reflection :

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

Q. A ray of light travelling in a transparent medium falls on a surface separating the medium from air at an angle of incidence ${40}^o$. The ray undergoes total internal reflection. If $n$ is the refractive index of the medium with respect to air, select the possible values of $n$ from the following$(Givensin{40}^o=0.64)$