The component of white light that deviates the most on passing through a glass prism is:

Correct option is C

The correct answer is (c) Violet .

• The component of white light that deviates the most when passing through a glass prism is violet light.
  

When white light passes through a glass prism, it undergoes dispersion, meaning it splits into its constituent colors (violet, indigo, blue, green, yellow, orange, and red). Each color in the spectrum has a different wavelength, and because of the prism’s refractive index, each wavelength is refracted (bent) by a different amount.

• violet light: Violet light has the shortest wavelength among visible colors, so it is refracted (deviated) the most by the prism.
• Red light: Red light has the longest wavelength in the visible spectrum and the smallest refractive index in glass. Because of this, it deviates the least when passing through a prism, appearing at the least bent edge of the spectrum.
• Blue: Blue light has a shorter wavelength than green, yellow, and red but is longer than violet. It deviates more than green or red but less than violet when passing through a prism
• Green: Green light lies in the middle of the visible spectrum, with a wavelength longer than blue and violet but shorter than yellow and red.