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For a certain organ pipe three successiv...

For a certain organ pipe three successive resonance frequencies are observed at 425Hz, 595 Hz and 765Hz respectively. If the speed of sound air is 340m/s, then the length of the pipe is

A

2.0m

B

0.4m

C

1.0m

D

0.2m

Text Solution

Verified by Experts

The correct Answer is:
C
Frequencies are in ratio 5:7:9. hence it's closed pipe
Using, `425Hz=5((v)/(4l)) " "l=(5v)/(4xx425)`
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