The minimum length of a pipe closed at one end is 18cm, when a tuning fork of 480 Hz is used. If the inner diameter of the tube is 3.34 cm, then the v

Question

The minimum length of a pipe closed at one end is 18cm, when a tuning fork of 480 Hz is used. If the inner diameter of the tube is 3.34 cm, then the v

The minimum length of a pipe closed at one end is 18cm, when a tuning fork of 480 Hz is used. If the inner diameter of the tube is 3.34 cm, then the velocity of sound in air will be nearly
A. 350m/s
B. 640m/s
C. 340m/s
D. 365m/s

Monjur Alahi

6 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 - D
`v=4n(l+e)`
`=4xx480xx(18+0.3) xx10^(-2)`
`=4xx4.8xx(18+0.3xx3.34)`
`=4xx4.8xx(18+1.002)`
`=4xx4.8xx19`
`=19.2xx19`
=364.8 m/s

6 views Answered 2023-02-05 15:29