Discussion Forum

 A uniform wire has length L mass M and density $\rho$  . it is under tension T and v is the speed of transverse wave along  the wire. The area of cross-section  of the wire is 

Answer:

Explanation:

 The speed of transverse wave along a wire is given by

               $v=\sqrt{\frac{T}{\mu}}$

 where $\mu$=  mass per unit length

                     = volume of unit length  x density

                      = area x density

   $\therefore$               $v=\sqrt{\frac{T}{A\rho}}\Rightarrow A=\frac{T}{v^{2}\rho}$