Two sound waves of equal amplitude interfere so that the compression of one wave falls on the rarefaction of the other. Which statement is true?

A. No sound is heard.

B. The loudness of the sound increases.

C. There is no change in the sound.

D. The pitch of the sound increased.

Two sound waves of equal amplitude interfere so that the compression of one wave falls on the rarefaction of the other. The statement which is true is that A. no sound is heard.

These waves interfere, which means that their equal amplitudes match and thus cancel each other out, which is why there is no sound.