Equation of a wave, propagating in a medium, is y = a sin (bt –cx). Which of the following statements, about this wave is incorrect?
(1) Ratio of the displacement amplitude, with which the particles of medium oscillate, to the wavelength, is equal to ac/2π.
(2) Ratio of the velocity oscillation amplitude of medium particles, to the wave propagation velocity, is equal to ac.
(3) Oscillation amplitude of relative deformation of the medium is directly proportional to velocity oscillation amplitude of medium particles.
(4) The wave is propagating along the negative x–axis.
