Define the term coherence for light waves.

Define the term dispersion of light.

Define the term' coherent sources' which are required to produce interference pattern in Young's double slit experiment.

Define the term'coherent sources' which are required to produce interference pattern in Young's double slit experiment.

Define the term wave motion?

Define the term wave motion.

The destructive interference at a certain point is produced when two coherent light waves superpose at that point with a phase difference of

Define the term intensity of a sound wave. State the unit in which it is measured.