A) 156 Hz
B) 152 Hz
C) 148 Hz
D) 160 Hz
Correct Answer: A
Solution :
Probable frequencies of tuning fork be \[n+4\] or \[n-4\] Frequency of sonometer wire \[n\propto \frac{1}{l}\] \[\therefore \] \[\frac{n+4}{n-4}=\frac{100}{95}\] or \[95\,(n+4)=100(n-4)\] or \[95n+380=100n-400\] or \[5n=780\] or \[n=156\]You need to login to perform this action.
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