A sonometer wire of length $1.5\;m$ is made of steel. The tension in it produce an elastic strain of $1\%$.What is the fundamental frequency of steel if density and elasticity of steel are $7.7 \times 10^3\; kg / m^3$and $2.2 \times 10^{11}\; N/m^2$ respectively ?

Question

$\begin{array}{1 1} (1)\;188.5\;Hz \\ (2)\;178.2\;Hz \\ (3)\;200.5\;Hz\\ (4)\;700\;Hz \end {array}$