Question

Two small loudspeakers emit pure sinusoidal waves with frequency-independent amplitude that are in phase.

a ) At the frequencies 0.63 kHz, 1.91 kHz, and 3.19 kHz we have constructive interference at point P.

b)	At the frequencies 1.27 kHz, 2.55 kHz, and 3.82 kHz the sound at point P is very soft.

c)	At the frequencies 1.27 kHz, 2.55 kHz, and 3.82 kHz the sound at point P is loud.

d)	The intensity of the sound at point P does not depend on the frequency.

e) 2.00 m 3.50 m 2.50 m

Since the distances from the two speakers to point P are different, we always have destructive interference.

Answer 1

correct option are as follow

d.) The intensity of the sound at point P does not depend on the frequency. c.) At the frequencies 1.27 kHz, 2.55 kHz, and 3.82 kHz the sound at point P is loud.