AInterference
BDispersion
CRefraction
DPolarisation
Answer:
D. Polarisation
Read Explanation:
Polarization of Light
The phenomenon of Polarization provides direct and conclusive evidence that light waves are transverse in nature.
In transverse waves, the oscillations of the medium particles (or electric and magnetic fields in case of electromagnetic waves) occur perpendicular to the direction of wave propagation.
Longitudinal waves, such as sound waves, cannot be polarized because the oscillation occurs in the same direction as the propagation.
Polarization involves restricting the vibrations of light waves to a single plane. When unpolarized light passes through a polaroid or a polarizing filter, the light becomes linearly polarized, proving that light can be oriented in specific transverse directions.
This property differentiates light waves from sound waves, as sound, being longitudinal, lacks the directional orientation required for polarization.