The critical angle of a material in air is 45°. When immersed in a liquid of refractive index √2/2 times that of the material, the new critical angle is:

Physics · Geometrical optics · law of refraction and total internal reflection

JEE MainsNEET

The critical angle of a material in air is 45°. When immersed in a liquid of refractive index √2/2 times that of the material, the new critical angle is:

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