Question

an increase in the amplitude of sound

(a) increase its pitch
(b) decrease its pitch
(c) increase its loudness
(d) decrease its loudness​

Answer 1

Answer:

increase its loudness

Explanation:

sound wave's amplitude relates to changes in pressure. The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases. ... As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder.May 19, 2020

Answer 2

Answer:

a) increase in pitch..