The equation of a wave disturbance is given as: y 0.02cos(π/2 + 50π) cos(10πx), where x and y are in meters and t in seconds. Choose the wrong statement:
(a) Antinode occurs at x = 0.3m
(b) The wavelength is 0.2m
(c) The speed of the constituent waves is 4m/s
(d) Node occurs at x 0.15m
