5 beat/s are produced on blowing together two closed organ pipes of the same diameter but of different lengths. If shorter pipe of length 10cm and spe

Question

5 beat/s are produced on blowing together two closed organ pipes of the same diameter but of different lengths. If shorter pipe of length 10cm and spe

5 beat/s are produced on blowing together two closed organ pipes of the same diameter but of different lengths. If shorter pipe of length 10cm and speed of sound in air 300m/s , then the length of longer pipe , will be
A. 10.06cm
B. 11.22cm
C. 15cm
D. 30cm

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`n_1-n_2=5`
`therefore v/4[1/l_1-1/l_2] = 30000/4[1/l_1-1/l_2]=5`
`therefore 1/l_1=1/l_2 = 20/30000 = 1/1500`
`1/l_2 = 1/10-1/1500=(150-1)/(1500) = 149/1500`
`l_2 = 1500/149 = 10.06cm`

5 views Answered 2023-02-05 15:29