The speed of sound in air is around 345 m/s. A tuning fork vibrates at 663 Hz ab

Question

The speed of sound in air is around 345 m/s. A tuning fork vibrates at 663 Hz above the open end of the sound resonance tube. What is the wavelength (in cm) of the sound waves in the tube?
In terms of the wavelength of the sound wave, how far apart are the first two resonant positions in the resonance tube?
A. One half of the wavelength
B. Three quarters of the wavelength
C. One wavelength
D. One quarter of the wavelength
In terms of the wavelength of the sound wave, how far apart are the first two resonant positions in the resonance tube?
A. One half of the wavelength
B. Three quarters of the wavelength
C. One wavelength
D. One quarter of the wavelength In terms of the wavelength of the sound wave, how far apart are the first two resonant positions in the resonance tube?
A. One half of the wavelength
B. Three quarters of the wavelength
C. One wavelength
D. One quarter of the wavelength

Explanation / Answer

wavelength=v/f=345/663

and it is equal to one quarter of wavelength D

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