A closed organ pipe 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)

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Physics

Quinkes Kundts and Resonance Tube Experiment

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$\frac{250 kHz}{1 .5 kHz} = 13 .33$

$∴$ Possible hormones

1, 3, 5, 7, 9, 11, 13

i.e 6.