The solid line in the graph shows the variation with distance x of the displacement y of atravelling wave at t = 0. The dotted line shows the wave 0.20 ms later. The period of the waveis longer than 0.20 ms.6420– 2– 4– 60.20.0 0.4 0.8 1.00.6y / cmx / mPQ(a) (i) Calculate, in m s–1, the speed for this wave.

(b) Sketch the graph of displacement against distance graph for progressive wave above ina range of 0 ≤ 𝑥 ≤ 𝜆 at time, t = 0 s.

The sinusoidal wave shown in the figure below is traveling in the positive x-direction and has a frequency of 48.5 Hz.A sinusoidal wave is plotted on a coordinate plane. The wave is vertically centered on the horizontal axis. The vertical distance between a crest and a trough is 8.26 cm, and the horizontal distance between a crest and the nearest trough is 5.20 cm.(a) Find the amplitude. cm(b) Find the wavelength. cm(c) Find the period. s(d) Find the speed of the wave. m/s

A wave travelling along the x-axis is described by the equation y(x,t) = 0.005cos (αx – βt). If the wavelength and the time period of the wave are 0.08 m and 2.0 s, respectively, then α and β in appropriate units are :α = 25.00 π ; β = πα = , β = α =  ; β =     α = 12.50 π ; β =

The time period of a periodic wave is 0.02 seconds. At a particular position, there is a crest at t = 0. A trough will appear at this position when 't' is equal toA 0.005 s B 0.010 s C 0.015 s D 0.025 s

Time left 0:54:06Question 5Not yet answeredMarked out of 2.00Flag questionQuestion textA progressive wave equation is given as y=0.65sine1.2x -0.4t).Determine the period of the wave(ii) Determine the   wave velocitya.16.7seconds (ii) 0.033m/sb.15.7 seconds (ii) 0.333m/sc.17.7 seconds (ii) 3.33m/sd.15.2seconds (ii) 0.333m/se.2seconds (ii) 33.3m/s