What is the name of the sound produced by irregular vibrations?

How is sound produced?

What are vibrations?

What is the name of larva produced by comb jellies?

Name some toxins produced by fungi.

Sound is produced by _____.

Name the sound producing organ in human.

An aluminium rod having a length of 90.0 cm is clamped at its middle point and is set into longitudinal vibrations by stroking it with a rosined cloth. Assume that the rod vibrates in its fundmental mode of vibration. The density of aluminium is 2600 kgm^-3 and its Young's modulus is 7.80xx10^10 Nm^-2 . Find a. The speed of sound in aluminium, b. The wavelength of sound waves produced in the rod. c. The frequency of the sound produced and d. The wavelength of the sound produced in air. Take the speed of sound in air to be 340 ms^-1 .