In the phenomenon of refraction of light for the same angle of incidence (a) angle of refraction is same for different colours. (b) angle of refraction is different for different colours. (c) angle of refraction does not depend upon the colour of the light used. (d) angle of refraction depends on critical angle.

Answer: (b). Refractive index depends on wavelength: μviolet > μred. By Snell's law sin r = (sin i)/(μ), so for the same i each colour has a different r (dispersion). So the answer is (b).

In the phenomenon of refraction of light for the same angle of… | MHT CET 2026 (15 Apr, Shift 2)

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Prism, Dispersion & Scattering

In the phenomenon of refraction of light for the same angle of incidence

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Answer: (b)

Refractive index depends on wavelength: $\mu_{violet} > \mu_{red}$ .
By Snell's law $\sin r = \frac{\sin i}{\mu}$ , so for the same $i$ each colour has a different $r$ (dispersion).
So the answer is (b).

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