In the dispersion of white light by a prism,w | vedclass

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(D) When white light passes through a prism,it splits into its constituent colors due to the difference in the refractive index of the glass for diffe

Vedclass · Accepted Answer

Red

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(D) When white light passes through a prism,it splits into its constituent colors due to the difference in the refractive index of the glass for different wavelengths. According to Cauchy's equation,the refractive index is inversely proportional to the wavelength of light. Red light has the longest wavelength in the visible spectrum,which results in the lowest refractive index for red light in the prism. Since the angle of deviation is directly related to the refractive index,the light with the lowest refractive index undergoes the minimum deviation. Therefore,red light deviates the least,while violet light,having the shortest wavelength,deviates the most.

In the dispersion of white light by a prism,which color of light undergoes the minimum deviation?

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