Question

Dispersion occurs due to the difference in the extent of ___ of different colours.

• A. reflection
• B. refraction
• C. both reflection and refraction
• D. diffraction

Answer 1

The correct option is B refraction

The phenomenon of the splitting up of white light into its component colours is dispersion. It occurs because different colours in white light undergo different extents of refraction.
Reflection is the phenomenon of bouncing of light in the same medium at the same angle with which it hits the smooth surface. Diffraction is the phenomenon where light spreads out after passing through a gap or going around an obstacle.