What are the three longest wavelengths for standing waves on a 240 cm long string that...

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Physics

What are the three longest wavelengths for standing waves on a240 cm long string that is fixed at both ends?


If the frequency of the second-longest wavelength is 50.0 Hz,what is the frequency of the third-longest wavelength?

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a For a standing wave if both ends are fixed the wavelength must be such that the length of the string must be an exact multiple of half a wavelength The longest wavelength must be such that    See Answer
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