(a) Explain wave-particle duality of light. (b) Illustrate your answer in (a) with observable phenomena.

Explanation

(a) Wave – particle duality of light means that light exists in two forms – wave and particle.

(b)(i) Wave nature – it has properties such as reflection, refraction, diffraction, polarization and interference.

(ii) Particle nature such as – Photo-electricity, momentum, radiation of energy from hot bodies and emission and absorption of light.