Two cellists, one seated directly behind the other in an orchestra, play the sam

Question

Two cellists, one seated directly behind the other in an orchestra, play the same note for the conductor who is directly in front of them. Because of the separation between the cellists, destructive interference occurs at the conductor. This separation is the smallest that produces destructive interference. Would this separation increase, decrease, or remain the same if the cellists produced a note with a higher frequency? A. The separation would decrease because the wavelength of the sound is smaller. B. The separation would increase because the wavelength of the sound is smaller. C. The separation would decrease because the wavelength of the sound is greater. D. The separation between the cellists would remain the same. E. The separation would increase because the wavelength of the sound is greater.

Explanation / Answer

The separation would decrease because the wavelength of the sound is smaller.

Note that the separation for destructive interference is half the wavelength.

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