Question

In an equilateral prism, if a ray is incident on the normal, the angle of the internally reflected ray deviates through .

• A. ${90}^0$
• B. ${30}^0$
• C. ${60}^0$
• D. ${45}^0$

Answer 1

The correct option is C ${60}^0$

In an equilateral prism, when the light ray is incident on the normal, the angle of the internally reflected ray is ${60}^0$.