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The transverse displacement of a string ...

The transverse displacement of a string (clamped at its two ends ) is given by `y(x,t)=0.06 sin[ (2pi)/(3)x] cos 120pit,`
where x, y are in m and t is in s.
Do all the points on the string oscillate with theh same
(a) frequency (b) phase (c) amplitude
Explain your answer.

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