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  • The length of the string of a musical instrument is 90 cm and has a fundamental frequency of 120 Hz. Where should it be pressed to produce a fundamental frequency of 180 Hz?  <di

The length of the string of a musical instrument is 90 cm and has a fundamental frequency of 120 Hz. Where should it be pressed to produce a fundamental frequency of 180 Hz?

 

Option: 1

60 cm


Option: 2

45 cm    


Option: 3

80 cm


Option: 4

75 cm


Answers (1)

best_answer

L_1=0.9m

f_1=120Hz

f_1=\frac{V}{2L_1}=120

f_2=\frac{V}{2L_2}

f_1l_1=f_2l_2

120 \times 0.9= 180 \times l_2

l_2= 0.6

Posted by

Irshad Anwar

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