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The length of pipe 4cm in diameter and open at both ends when it is set into vibrations by a tuning fork of frequency 288Hz. (v=332m/s)A. 85.23cmB. 75.23cmC. 65.23cmD. 55.23cm |
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Answer» Correct Answer - D `v=2n(l+e)` `l+e=(v)/(2n)=(332)/(2xx288)` `l+e=166/288=0.576` `l=0.576-0.3d` `=0.576-0.3xx4xx10^(-2)` `=0.576-0.0012` =0.5526 =55.26cm |
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