Physics Fill in the blanks.[1M]

Bending of light from the edges of the barrier is called ________ .

The effect of diffraction can be observed in sound and ________ waves.

Linear transmission of light in the medium is due to ________ .

In Young's double-slit experiment, if red light is used instead of sodium light, the fringe width will first ________ and then _________ .

If Young's double-slit experiment is done in water instead of air, then the width of the fringe will ________ .

The ________ nature of light existed in diffraction and photoelectric effect.

The wave front formed by diverging rays emerging from a point source is _________ .

Wave theory of light was proposed by _________ .

The width of the diffraction bands is _________ to the distance between the slit and the screen.

The principle of superposition is related to_________ phenomenon.