Rays of which of the following colours show the highest deviation by a prism?

Correct option is C

The correct answer is (c) Violet.
Explanation:
· Violet light has the shortest wavelength in the visible spectrum and, as a result, experiences the maximum deviation when passing through a prism.
· Red light, with the longest wavelength, undergoes the least deviation.
· The deviation of colors in the spectrum follows the sequence of VIBGYOR, with violet at one extreme and red at the other.
Information Booster

• ​Dispersion of Light: Occurs when white light splits into its constituent colors due to refraction in a prism.
  
• Refractive Index and Wavelength: The refractive index of a material is inversely proportional to the wavelength of light, leading to greater bending for shorter wavelengths.
  
• Prism Applications: Used in spectroscopy, optical instruments, and understanding light properties.
  
• Order of Wavelengths: Violet < Indigo < Blue < Green < Yellow < Orange < Red.