What happens to the pitch when the frequency of a sound wave decrease? A it stays the same

B it decreases by that same amount

C it increases twice the amount

D it increases by the same amount

B

Explanation:

Pitch is determined by frequency. So if frequency increases, pitch increases and produces a higher sound. If frequency decreases, pitch decreases and produces a lower sound. Frequency and wavelength are inversely related, meaning that if frequency increases, wavelength becomes shorter and vice versa

m=9

step-by-step explanation: