39 Figure given below shows four progressive waves 42 A B C

Last updated: 6/10/2023

39 Figure given below shows four progressive waves 42 A B C and D with their phase expressed with respect to the wave A It can be calculated from the figure that 3 2 20 fot 1 The wave C is ahead by a phase angle of 1 2 and the wave B lags behind by a phase angle of n 2 2 The wave C lags behind by a phase angle of 1 2 and the wave B is ahead by a phase angle of n 2 3 The wave C is ahead by a phase angle of x and the wave B lags behind by a phase angle of n 4 The wave C lags behind by a phase angle of it and the wave B is ahead by a phase angle of r 40 Velocity of sound waves in air is 330 m s For 43 44