Question

define wavelength and pitch

Answer 1

Wavelength- The distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave.
Pitch- The quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.

Answer 2

Wavelength is the distance between two successive identical parts of a wave It is commonly designated by the Greek letter

lambda

(λ).


Pitch: It is the characteristic of sound which help us to distinguish sounds of same loudness but of different frequency.  

The pitch of a sound is directly proportional to its frequency. Sounds of low frequency are said to have low pitch whereas sounds of high frequency are said to have high pitch.