Question

In which condition does light ray undergoes total internal reflection?

• A. When angle of incidence is greater than critical angle
• B. When angle of refraction is greater than critical angle
• C. When angle of incidence is greater than refraction angle
• D. When angle of critical is greater than normal angle

Answer 1

The correct option is A When angle of incidence is greater than critical angle

When angle of incidence$\left(i\right)$ is greater than Critical angle $\left(C\right)$, total internal reflection takes place.

Answer-(A)