If 20 waves are produced per second, what is the frequency in hertz?

If 20 waves are proeduced per second. What is the frequency in Hertz?

If 25 sound waves are produced per second, what is the frequency in hertz?

If you make four rope waves-per second, what is the frequency of the wave?

If 5 waves are produced in half a second of time, what is the frequency of the wave ?

Frequencies of two tuning forks are in the ratio 20:21. When sounded together 8 beats are heard per second. What are their frequencies :

Two sound wave of wavelength 0.80 m and 0.81 m produce 8 beats per second in air. The frequency of the two waves are respectively:

A tuning fork vibrating with a sonometer having 20 cm wire produces 5 beats per second. The beat frequency does not change if the length of the wire is changed to 21 cm. The frequency of the tuning fork (in Hertz) must be

A tuning fork vibrating with a sonometer having 20 cm wire produces 5 beats per second. The beat frequency does not change if the length of the wire is changed to 21 cm. The frequency of the tuning fork (in Hertz) must be

A tuning fork vibrating with a sonometer having 20 cm wire produces 5 beats per second. The beat frequency does not change if the length of the wire is changed to 21 cm. The frequency of the tuning fork (in Hertz) must be