refractive index of glass is 1.62 and water is 1.32 .find critical angle
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critical angle = sin⁻¹(1/refractive index)
critical angle of glass = sin⁻¹(1/1.62) = 38.1°
critical angle of water = sin⁻¹(1/1.32) = 49.2°
critical angle of glass = sin⁻¹(1/1.62) = 38.1°
critical angle of water = sin⁻¹(1/1.32) = 49.2°
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