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A string fixed at both ends has consecutive standing wave modes for which the distance between adjacent nodes are 18 cm and 16 cm respectively. The length of the string is -A. 144 cmB. 152 cmC. 176 cmD. 200 cm |
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Answer» `L=(mlambda_1)/2 and L(m+1) lambda_2/2` Where m is no. of harmonic m.36=(m+1)32 `rArr m=8` `L=8xx18=144cm` |
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