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A string fixed at both ends has consecut...

A string fixed at both ends has consecutive standing wave modes for which the distances between adjacent nodes are 18 cm` and `16 cm respectively. The minimum possible length of the string is:

A

144 cm

B

152 cm

C

176 cm

D

200 cm

Text Solution

Verified by Experts

`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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