Answer :
Answer:
Pitch is defined as the sharpness of sound.
Pitch in sound corresponds to colour in light which depends on the wavelength or frequency of a light wave.
The use of the pitch is that it enables us to distinguish between a high, acute or shrill note from low, grave or flat note.
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Pitch was traditionally used to help caulk the seams of wooden sailing vessels (see shipbuilding). Pitch may also be used to waterproof wooden containers and in the making of torches