Physics

Problem

A granite rod of 60 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? a. 5 kHz b. 2.5 kHz c. 10 kHz d. 7.5 kHz