Maximum Refractive Index for Violet Color

The correct answer is option 'B' Violet. When light passes from one medium to another, such as from air to glass, it undergoes refraction. Refraction is the bending of light as it passes through a different medium, and the amount of bending depends on the refractive index of the medium.

The refractive index of a material is a measure of how much the speed of light is reduced when it passes through that material. Different colors of light have different wavelengths, and when light passes through a medium, its wavelength changes. This causes different colors to be refracted at different angles. The refractive index of a material determines the extent of this bending.

Explanation:
When light passes through a prism, it is separated into its constituent colors, forming a spectrum. The colors of the spectrum are arranged in a specific order, with red having the longest wavelength and violet having the shortest wavelength.

The refractive index of a material varies with the wavelength of light. Violet light has the shortest wavelength in the visible spectrum, and therefore it is bent the most when passing through a medium. This means that the refractive index of glass is maximum for violet color.

When light passes from air to glass, the violet light is bent the most, followed by blue, green, yellow, orange, and finally red. This bending of light causes the different colors to separate, creating the spectrum. The extent of bending or refraction depends on the refractive index of the material.

In the case of glass, the refractive index is higher for shorter wavelengths (violet and blue) and decreases gradually for longer wavelengths (green, yellow, orange, and red). This is why violet light is refracted the most and has the highest refractive index in glass.

Therefore, the correct answer is option 'B' Violet, as it has the maximum refractive index in glass compared to the other colors.