Question

write the relation that determines pitch with wave length and velocity of a wave

Answer 1

Pitch is the brain interpretation of frequency.

So, Pitch is directly proportional to frequency.

But, Frequency=Velocity/Wavelength 

So, Pitch (is proportional to) Velocity/Wavelength.plz mark as brainiest.

Answer 2

Frequency is that characteristic of a sound wave that determines its pitch.
Frequency, velocity and wavelength are related as follows :
Speed =wavelength × frequency

Hope that this was helpful.
Cheers....