A sound of single frequency is called

Q. A sound of single frequency is called

1. tone 
2. note 
3. intensity 
4. wavelength

Answer: Tone

The only sound which consists of a single frequency is the pure SINE TONE such as produced by a sine wave OSCILLATOR or approximated by a tuning fork. All other sounds are complex, consisting of a number of frequencies of greater or lesser intensity. The frequency content of a sound is its SPECTRUM.

Q: What is the sound of a single frequency known as?

A sound of single frequency is called a tone.

A sound of single frequency is called a tone. A sound that is produced when several frequencies are mixed is called a note.