The frequency (f) of a wire oscillating with a length \[\ell \], in p loops, under a tension T is given by \[f=\frac{P}{2\ell }\sqrt{\frac{T}{\mu }}\] where \[\mu =\] linear density of the wire. If the error made in determining length, tension and linear density be 1%, -2% and 4%, then find the percentage error in the calculated frequency

• A. -0.04
• B. - 2%
• C. - 1%
• D. - 5%