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Please answer the question no 53 as soon as possible thanks

Please answer the question no 53 as soon as possible thanks

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Grade:11

1 Answers

Norman Manchu
151 Points
4 years ago
Length of the wave=number of waves formed
The string is fixed at both the ends and in the third harmonic which implies that three half-waves will form between the two ends thus-​
From the equation given kx=0.8x(cm^-1) 
But​
After finding the value of lambda put in the equation of length

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