Determine the frequency of the third-longest wavelength
i) Determine the three longest wavelengths for standing waves on a 240 cm long string which is fixed at both ends?
ii) When the frequency of the second-longest wavelength is around 50 Hz, determine the frequency of the third-longest wavelength?
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When the frequency of the second-longest wavelength is around 50 Hz, determine the frequency of the third-longest wavelength?
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