Question

31. What do you mean by the interference of waves. If two waves are y; = a sin ot and
Vj = b sin ot+superiposing on each other derive the conditions of constructive and destructive interference
of these waves in terms of phase and path differečes and hence write the expressions of maximum and minimum
intensities a​

Answer 1

Answer:

Interference, in physics, the net effect of the combination of two or more wave trains moving on intersecting or coincident paths. The effect is that of the addition of the amplitudes of the individual waves at each point affected by more than one wave .  What do you mean by an interference of two or more than two waves?

Interference occurs when several waves are added together provided that the phase differences between them remain constant over the observation time. It is sometimes desirable for several waves of the same frequency and amplitude to sum to zero (that is, interfere destructively, cancel).

Superposition is the combination of two waves at the same location. Constructive interference occurs when two identical waves are superimposed in phase. Destructive interference occurs when two identical waves are superimposed exactly out of phase. ... Nodes are points of no motion in standing waves.