General Science • PhysicsMedium
When a ray of white light passes through a glass prism, it splits into its component colors due to which of the following properties?
A. Different velocities of different colors in a vacuum
B. Different refractive indices for different wavelengths of light in glass✓ Correct Answer
C. Total internal reflection inside the prism medium
D. Interference of light waves at the prism surface
💡 Solution & Explanation
Dispersion occurs because the refractive index of glass varies with the wavelength of light, causing different colors to bend at slightly different angles. Red light has the longest wavelength and bends the least, while violet has the shortest wavelength and bends the most. Light travels at the same speed in a vacuum regardless of its color.
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