We can distinguish between the musical sounds produced by different singers on the basis of the characteristic of sound called:

Which of the following frequency of sound can be generated by a vibrating simple pendulum as well as by the vibrating vocal cords of a rhinoceros?

Which of the following are used to study the growth of fetus inside the mother's womb?

The maximum speed of vibrations which produce audible sound will be in:

The sound waves travel fastest: