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A string 120 cm in length sustains a sta...

A string `120 cm` in length sustains a standing wave, with the points of the string at which the displacement amplitude is equal to `3.5 mm` being separated by `15.0cm.` Find the maximum displacement amplitude. To which overtone do these oscillations correspond ?

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The correct Answer is:
`a_(max) = 3.5 sqrt(2) mm;` to the third overtone.
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RESONANCE-TRAVELLING WAVES-Exercise- 1 PART I
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