Constructive Interference

There is a destructive interference between the two waves of wavelength lambda coming from two different paths at a point. To get maximum sound or constructive interference at that point, the path of one wave is to be increased by

There is a destructive interference between the two waves of wavelength lambda coming from two different paths at a point. To get maximum sound or constructive interference at that point, the path of one wave is to be increased by

Two monochromatic and coherent point sources of light are placed at a certain distance from each other in the horizontal plane. The locus of all those points in the horizontal plane which have constructive interference will be-

Interference OF sound waves || Examples on interference || constructive || Distructive interference

What is constructive and destructive interference?

Define interference. Derive expressions for constructive and destructive interference.