Loudspeaker “A” produces a loud musical tone when played by
itself. Loudspeaker “B” also produces the same loud musical tone
when played by itself. However, when both loudspeakers are
played together and close to each other, there is very little
sound heard.
Is this possible?
Yes, because of constructive interference.
No, because the resulting frequency is too high to hear.
Yes, because of the Doppler effect.
Yes, because of destructive interference.
No, because the resulting sound must be louder than either
speaker by itself.