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The refractive index of glass relative to air is 1.5. What is the critical angle for the glass-air interface? - Physics (Theory)

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प्रश्न

The refractive index of glass relative to air is 1.5. What is the critical angle for the glass-air interface?

संख्यात्मक
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उत्तर

Given: Refractive index of glass relative to air (μ) = 1.5

To Find: Critical angle (C)

Formula: sin⁡ C = `1/μ`

sin C = `1/1.5`

sin C = 0.6667

C = sin−1 (0.6667)

C ≈ 41.8°

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पाठ 15: Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre - QUESTIONS [पृष्ठ ७८३]

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नूतन Physics Part 1 and 2 [English] Class 12 ISC
पाठ 15 Refraction of Light at a Plane Interface : Total Internal Reflection : Optical Fibre
QUESTIONS | Q 17. | पृष्ठ ७८३
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