In a plane progressive wave given by `y=25 cos (2 pi t- pi x)`, the amplitude and frequency are respectively

A plane progressive wave is given by y = 2 cos 6.284 (330 t-x) . What is the period of the wave?

The equation of a plane progressive wave is given by y = 0.025 sin (100 t + 0.25 x) .The frequency of this wave would be

The equation of a plane progressive wave is given by y=2cos(100pit-(pix)/(20)) where x and y are in cm and t is in second. The wavelength of the wave is

The equation of a plane progressive wave is given by y=2cos(100pit-(pix)/(20)) where x and y are in cm and t is in second. The wavelength of the wave is

A plane progressive wave is represented by the equation y= 0.25 cos (2 pi t - 2 pi x) The equation of a wave is with double the amplitude and half frequency but travelling in the opposite direction will be :-