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The graph below shows the instantaneous ...

The graph below shows the instantaneous displacements due to a progressive longitudinal wave travelling with velocity `40 ms^(-1)`. along the line ABCD. (See Fig. 14.4.13).
(a) What is the frequency of the particles of the medium ?
(b) What is the phase difference between vibrations at A and B ?
(c) At which of the points A, B, C, D is the instantaneous particle velocity maximum forward ?
(d) At which of the points A, B, C, D is there a compression ?

Text Solution

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The correct Answer is:
(a) 200Hz, (b) `pi//2`, (c) the point B, the point B
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