Standing waves were produces in a streched string by anelectric vibrator attache

Question

Standing waves were produces in a streched string by anelectric vibrator attached at one end vibrating at 60Hz. The stringran over a pulley at the other end and was attached to a weighthanger. a.) If the string length (from vibrator to pulley) is 1.50 mand the mass of the string is 1.00 x 10^-4kg, what total hangingmasses, must be suspended to produce the 3rd and 4thharmonics? m3, m4 ? b.)What is the wavelength the 3rd harmonics of thisstring? Standing waves were produces in a streched string by anelectric vibrator attached at one end vibrating at 60Hz. The stringran over a pulley at the other end and was attached to a weighthanger. a.) If the string length (from vibrator to pulley) is 1.50 mand the mass of the string is 1.00 x 10^-4kg, what total hangingmasses, must be suspended to produce the 3rd and 4thharmonics? m3, m4 ? b.)What is the wavelength the 3rd harmonics of thisstring?

Explanation / Answer

Length L = 1.5 m

Fundamental frequency f= 60 Hz

For 3 rd harmonic frequency f ‘ = 3f = 180 Hz

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