Answer to Question #289688 in Optics for Hi-man

Question

What is Interference of light? What are coherent source? Give the condition for well-defined and Sustened interference.

Answer 1

Solution.

When two or more waves (which frequency and wavelength are almost same) superimposed at any point then resultant waves gets by redistribution of energy

This phenomenon is called Interference.

When the two sources are called coherent sources if they produce two waves having same frequency, same waveform and have constant phase different between them which does not change with time. These types of source is called Coherent source.