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  1. If the speed of sound is measured using a tube, some water, and a tuning fork, would the value for the speed of sound obtained be different if two tuning forks of different frequencies were used? Explain.

  2. Why are musical instruments tuned before every experiment?

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1 Answer

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  1. No, as long as you accounted for the fact that the tuning forks had different frequencies. The speed of sound is calculated by a formula based on the frequency of the tuning fork and the length of the tube (varies, depending on an open ended tube and a closed ended tube)

  2. The main reason is a change in the conditions of air. Since sound travels through air, a change in humidity or temperature can affect the speed of sound, and hence affect the associated wavelength of sound!

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