JEE Main PAPER - 1

A granite rod of $60 \text{ cm}$   length is clamped at its middle point and is set into longitudinal vibrations. The density of granite is $2.7 \times 10^3 \text{ kg/m}^3$   and its Young's modulus is $9.27 \times 10^{10} \text{ Pa}$  . What will be the fundamental frequency of the longitudinal vibrations?