Two closed organ pipes, when sounded simultaneously gave 4 beats per s – McqOptions

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1.	Two closed organ pipes, when sounded simultaneously gave 4 beats per sec. If longer pipe has a length of 1m. Then length of shorter pipe will be, (v = 300 m/s) [Pb. PMT 2002]
A.	185.5 cm
B.	94.9 cm
C.	90 cm
D.	80 cm
Answer» C. 90 cm

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