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# calculate the period of the wave Watch

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1. sound travels at 330ms^-1 in air calculate the period of the wave?
Plz help, i don't know how to answer this
2. Sound waves can have lots of different periods (yet travel at the same speed). For example my voice at 500 Hz will have a period of 2 ms. A dog whistle at 50,000 Hz will have a period of 0.02 ms. The period T is one over the frequency f, i.e. T = 1/f.
3. (Original post by p29)
sound travels at 330ms^-1 in air calculate the period of the wave?
Plz help, i don't know how to answer this
Seems to be missing information, is there a frequency given?
4. (Original post by mik1a)
Sound waves can have lots of different periods (yet travel at the same speed). For example my voice at 500 Hz will have a period of 2 ms. A dog whistle at 50,000 Hz will have a period of 0.02 ms. The period T is one over the frequency f, i.e. T = 1/f.
but the question does not give the frequency
5. (Original post by p29)
but the question does not give the frequency
Then the question is daft.
6. (Original post by mik1a)
Then the question is daft.
lol
7. If its part of a multi part question check for any information about wavelength in the earlier parts.
Use the relationship
Wave speed = wavelength * frequency
To get the frequency

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