1. Tardigrade
  2. Question
  3. Physics
  4. The refractive index of a material of a prism of angles 45°-45°-90° is 1.5. The path of the ray of light incident normally on the hypotenuse side is shown in

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Q. The refractive index of a material of a prism of angles $45^{\circ}-45^{\circ}-90^{\circ}$ is $1.5$. The path of the ray of light incident normally on the hypotenuse side is shown in

Ray Optics and Optical Instruments

Solution:

According to given conditions TIR must take place at both the surfaces $A B$ and $A C$. Hence only option $(a)$ is correct.