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  • Can someone explain A closed organ has a fundamental frequency of 1.5 kHz. The number of overtones that can be distinctly heard by a person with this organ pipe will be :(Assume that the highest frequency a person can hear is 20,000 Hz )

A closed organ has a fundamental frequency of 1.5 kHz. The number of overtones that can be distinctly heard by a person with this organ pipe will be :(Assume that the highest frequency a person can hear is 20,000 Hz )

 

  • Option 1)

    6

  • Option 2)

    4

  • Option 3)

    5

  • Option 4)

    7

Answers (1)

best_answer

 

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

 

(2n +1)f_{0}\leq 20000

f_{0} = 1.5kHz

n = 6

Total numbers of overtone that can be heared is 7 (0 →6)


Option 1)

6

Option 2)

4

Option 3)

5

Option 4)

7

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