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Sound Waves

Sound waves f...

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Sound waves from a tuning fork F reach a point P by two separate routes FAP and FBP(when FBP is greater than FAP by 12cm there is silence at P). If the difference is 24cm the sound becomes maximum at P but at 36 cm there is silence again and so on.If velocity of sound in air is330 m/s, the least frequency of tuning fork is how much

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Q. Sound waves from a tuning fork A reach a point P by two separate paths ABP and ACP. When ACP is greater than ABP by 11.5 cm, there is silence at P. When the difference is 23 cm the sound becomes loudest at P and when 34.5 cm there is silence again and so on. Calculate the minimum frequency (in Hz) of the fork if the velocity of sound is taken to be 331.2 m/s.

Q. Sound waves from a tuning fork A reach a point P by two separate paths ABP and ACP. When ACP is greater than ABP by 11.5cm, there is silence at P. When the difference is 23cm, the sound becomes loudest at P and when 34.5cm, there is silence again and so on. Calaulate the minimum frequency of the fork if the velocity of sound is taken to be 331.2m/s.

Q. Two sound waves emerging from a source reach a point simultaneously along two paths. When the path difference is 12 cm or 36 cm then there is silence at that point. If the speed of sound in air is 330 m/s then calculate least possible frequency of the source in Hz

Q. In a resonance tube the first resonance with a tuning fork occurs at

16

cm and second at

49

cm. If the velocity of sound is

330

m/s, the frequency of tuning fork is :

Q. A tuning fork of frequency

500 Hz

is sounded on a resonance tube. The first and second resonances are obtained at

17 cm

52 cm .

The velocity of sound is

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