Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

Total internal reflection can take place only, if

Options:

the refractive indices of the two media are equal.

light goes from an optically denser medium to a rarer medium

light goes from an optically rarer medium to an optically denser medium

The angle of incidence is less than the critical angle.

Correct Answer:

light goes from an optically denser medium to a rarer medium

Explanation:

The correct answer is Option (2) → light goes from an optically denser medium to a rarer medium