Figureshows a plot of the transverse displacements of the particles of a string at t = 0 through which a travelling wave is passing in the positive x-direction. The wave speed is 20 cms^-1. Find (a) the amplitude, (b) the wavelength, (c) the wave number and (d) the frequency of the wave..

Figureshows a plot of the transverse displacements of the particles of

1.	Figureshows a plot of the transverse displacements of the particles of a string at t = 0 through which a travelling wave is passing in the positive x-direction. The wave speed is 20 cms^-1. Find (a) the amplitude, (b) the wavelength, (c) the wave number and (d) the frequency of the wave..
Answer» Solution :GIVEN that `v=20cm/s` a. amplitude `A=1mm` b. `Wavelength LAMDA=4cm` c. Wave NUMBER `N=(2PI)/lamda` `=((2xx3.14))/4` `=1.57cm^-1` `(wave number =k)` d. Frequencey `f=1/T=20/4=5Hz` `(where time period T=lamada/v)`