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  • I need help with A tube closed at one end containg air produces, when excieted , the fundamental note of frequency 512 kHz. If tube is opened at both ends, the fundamental frequency, that can be excieted is

A tube closed at one end containg air produces, when excieted , the fundamental note of frequency 512 kHz. If tube is opened at both ends, the fundamental frequency, that can be excieted is

  • Option 1)

    1024

  • Option 2)

    512

  • Option 3)

    256

  • Option 4)

    128

 

Answers (1)

best_answer

Fundamental frequency of closed pipe is \frac{v}{4l} and for open pipe \frac{v}{2l}

 

The frequency in closed organ pipe -

\nu = \left ( 2n+1 \right )\frac{V}{4l}

n= 0,1,2,3...............
 

- wherein

V= velocity of sound wave

l= length of pipe

n= number of overtones

 

 


Option 1)

1024

This is correct

Option 2)

512

This is incorrect

Option 3)

256

This is incorrect

Option 4)

128

This is incorrect

Posted by

divya.saini

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