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? a. 6.3 meters b. 2.3 meters c. 3.0 meters d. 1.2 meters e. 9.3 meters

1. The wavelength of the sound signal is 6.3 meters
The correct answer is an option (a)
For given situation we will use the following formula,
λ = c/ν
where,
λ = wavelength of sound signal
ν = frequency
c = speed of sound under water
In this question we have been given,
A sound signal traveling underwater has a frequency,
ν = 230 Hz
The speed of sound under water,
c = 1.45 × 10^3 meters/second
Now put all the given values in the above formula, we get:
⇒ λ = (1.45 × 10^3)/(230)
⇒ λ = 6.30 meters
Therefore, the wavelength of the sound signal is 6.3 meters
The correct answer is an option (a)