(i) What is the relation between critical angle and refractive index o

1.	(i) What is the relation between critical angle and refractive index of a material?(ii) Does critical angle depend on the colour of light? Explain.
Answer» (i) Refractive index = 1/sin C where C is the critical angle. (ii) Since, refractive index depends upon the wavelength of light, the critical angle for a given pair of media is different for different wavelengths (colours) of light.

(i) What is the relation between critical angle and refractive index of a material?(ii) Does critical angle depend on the colour of light? Explain.

Answer»

(i) Refractive index = 1/sin C
where C is the critical angle.

(ii) Since, refractive index depends upon the wavelength of light, the critical angle for a given pair of media is different for different wavelengths (colours) of light.

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(i) What is the relation between critical angle and refractive index of a material?(ii) Does critical angle depend on the colour of light? Explain.

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