A harmonic wave travelling along the position direction of X-axis is represented
Channel: Doubtnut
Date: 2021-11-10

A harmonic wave travelling along the position direction of X-axis is represented by the equation : `xi=0.3xx10^(-4) cos (220/7t-1.57x)`, where `xi`, t ant x are in cm , second and metre respectively.Deduce the (i)amplitude (ii)wavelength and (iii)time period.