Question: What's the answer and can you please show the work? Thank you so much Two in-phase loudspeakers that emit sound with the same frequency are

What's the answer and can you please show the work? Thank you so much

Two in-phase loudspeakers that emit sound with the same frequency are placed along a wall and are separated by a distance of 8.00 m. A person is standing 12.0 m away from the wall, equidistant from the loudspeakers. When the person moves 3.00 m parallel to the wall, she experiences destructive interference for the second time. What is the frequency of the sound? The speed of sound in air is 343 m/s. O 422 Hz 452 Hz 278 Hz 692 1 12 562 132

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