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Average human ears can hear sound frequencies between 20 Hz to 20,000 Hz. If the speed of sound in air is 340m/s, then a human could hear which of the following wavelengths?o 25 mO 5.0 m0 0.01 m80 m

User Olshevski
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1 Answer

15 votes
15 votes

ANSWER:

5.0 m

Explanation:

We must calculate the minimum distance and maximum distance to know which of these distances is correct.

We know that hearing a sound wave,

Speed = Wavelength x Frequency, therefore:


\begin{gathered} v=\lambda\cdot f \\ \text{solving for }\lambda \\ \lambda=(v)/(f) \end{gathered}

Maximum distance


\lambda=(340)/(20)=17\text{ m}

Minimum distance:


\lambda=(340)/(20000)=0.017\text{ m}

The only answer choice between 17 meters and 0.017 meters is 5 meters.

User GRY
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