Q. A light ray is incident on a transparent sphere of refractive index $= 2$ , at an angle of incidence $= 4 5^{\circ}$ . What is the deviation (in degree) of a tiny fraction of the ray, which enters the sphere, undergoes two total internal reflections and then refracts out into air?

1557 169 Ray Optics and Optical Instruments Report Error

Answer: 270

Solution:

Q. A light ray is incident on a transparent sphere of refractive index =2​, at an angle of incidence =45∘. What is the deviation (in degree) of a tiny fraction of the ray, which enters the sphere, undergoes two total internal reflections and then refracts out into air?