If the load at the end of a sonometer wire is immersed in a bucket of water, the original fundamental frequency of the wire could be restored by
A
decrease the length of the wire
B
increasing the length of the wire
C
increasing the mass per unit length of the wire
D
changing the temperature of the wire
Verified Correct Answer: A.
Physical Principles & Numerical Solution
F = \(\frac{1}{2L}\)\(\sqrt{\frac{T}{\mu}}\)
The original fundamental frequency of the wire could be restored by decreasing the length of the wire since frequency is inversely proportional to length.
Source: Myschool Past Questions Archive (Record #27705)