Two waves of the same frequency and amplitude super impose to produce a resultant disturbance of the same amplitude. The phase difference between the waves is.

Two waves of the same frequency and amplitude super impose to produce

1.	Two waves of the same frequency and amplitude super impose to produce a resultant disturbance of the same amplitude. The phase difference between the waves is.
Answer» zero `pi//3` `pi//4` `2pi//3` Solution :Let the amplitude of each wave be A and phase difference between them be `PHI` . Then , `A = SQRT(A^(2) + A^(2) + 2 A^(2) COS phi) implies cos phi = - (1)/(2)` or `phi= (2pi)/(3)`