A) 100/101
B) 99/100
C) 1
D) 2
Correct Answer: C
Solution :
The frequency of sonometer wire is \[n=\frac{1}{2l}\sqrt{\frac{T}{m}}\] Taking logarithm and differentiate, we get \[\frac{\Delta n}{n}=\frac{\Delta l}{l}+\frac{1}{2}\frac{\Delta T}{T}+\frac{1}{2}\frac{\Delta m}{m}\] \[\therefore\] \[\frac{\Delta n}{n}=\frac{\Delta l}{l}+0+0=1%\] Hence, frequency will increase by 1%.You need to login to perform this action.
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