Quantam nature of light is explained by which of the following phenomenon

Quantum nature of light is not supported by the phenomenon of

Though wave theory of light can explain a number of phenomena observed with light, it is necessary to retain the ray nature of light to easily explain the phenomenon of

What is nature of light? Wave optics and particle nature of light are used to explain which phenomena of light respectively?

The transverse nature of light waves is demonstrated only by the phenomenon of :

Explain the wave nature of light.

Explain the wave nature of light.

Explain the dual nature of light.