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(a) Distinguish between transverse wave ...

(a) Distinguish between transverse wave and longitudinal wave. Give one example of each type.
(b) A stretched string of length I and under a tension T, emits a note of fundamental frequency n. The tension is now reduced to T/2 and the vibrating length changed so that the frequency of the second harmonic is equal to n. Find out the new length of the string in terms of its original length.

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