NEET Physics Critical Angle MCQ Question
Light travels in two media M₁ and M₂ with speeds 1.5 × 10⁸ m s⁻¹ and 2.0 × 10⁸ m s⁻¹ respectively. The critical angle between them is:
tan⁻¹(3/√7)
tan⁻¹(2/3)
cos⁻¹(3/4)
sin⁻¹(2/3)
Correct Answer
Detailed Explanation
The critical angle is calculated using Snell's law, where sin(critical angle) = n₂/n₁. Here, n₁ and n₂ are the refractive indices corresponding to the speeds in M₁ and M₂.
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