Critical angle for glass (n=1.5) to air:

Question

Team JKExamLibrary · Accepted Answer

sinθ_c = n₂/n₁ = 1/1.5 = 2/3 ⇒ θ_c = sin⁻¹(0.667) ≈ 42°. Total internal reflection condition. Memory tip: 'θ_c = sin⁻¹(1/n) for denser to air'. Optics calculation frequently tested in competitive exams with standard refractive indices.

Critical angle for glass (n=1.5) to air: MCQ with Answer and Explanation

Solution (By JKExamLibrary)

Discuss this Question (0)

Practice More Physics Questions