Answer (i), (ii), (iii) & (iv) The displacement, y, at a point, x, at time, t, due to a plane wave travelling in a medium along the x.direction is given by the expressiony = 1.0 x 10-7m Sin(6.6 x 10-3t-20m-x).Determine:(i.) the velocity of the wave(ii.) the phase of a particle situated 3cm from 0. What is the speed of this particle?(111.) the phase difference between two particles situated 2cm and 4.2cm from 0. Do these particlesvibrate in phase?(iv.) the maximum speed of a particle at 0.

Given: The expression of the wave is, y=1.0×10-7sin6.6×10-3t-20x

Answered: The displacement, y, at a point, x, at…

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