The frequency (in Hz) of a note that is one octave higher than 500 Hz is

What is the name of the unit used to measure frequency?

Which one of the following cannot be the unit of frequency of a sound wave?

Which of the following animals can hear the highest frequencies?

A sound wave having frequency of 300 Hz is travelling in an unknown medium. Its wavelength is not known. It travels a distance equal to 150 times its wavelength in time t. The value of t is :

The frequency (ƒ), wavelength (λ) and speed (v) of a sound wave are related as