Question

A sound signal traveling underwater has a frequency of 230 hertz. The speed of sound under water is 1.45 × 103 meters/second. What is the wavelength of the sound signal?

Answer 1

It would be lamda = speed / frequency

= 1.45 *103/230 = 149.35/230 = 0.64m

Answer 2

Answer : The wavelength of the sound signal is 6.30 m.

Explanation :

Formula used :

`\lambda=(c)/(\\u)`

where,

`\lambda` = wavelength of sound signal = ?

`\\u` = frequency =
`230Hz=230s^(-1)`

c = speed of sound under water =
`1.45* 10^3m/s`

Now put all the given values in the above formula, we get:

`\lambda=(1.45* 10^3m/s)/(230s^(-1))`

`\lambda=6.30m`

Therefore, the wavelength of the sound signal is 6.30 m.