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Challenge Problems
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Question 1
Calculate the frequency of a sound wave that has a speed of 340 m/s and a wavelength of 1.5 m.
Solution: Using the formula frequency = speed/wavelength, the frequency is 226.67 Hz.
Hint: Use the formula related to sound wave properties.
💡 Hint: Use the formula related to sound wave properties. - **Problem**: If a person hears an echo 2 seconds after shouting, what is the minimum distance to the reflecting surface? **Solution**: Since sound travels at approximately 344 m/s, the distance is v * t = 344 m/s * 1 s = 344 m. The distance to the surface is then half of this, which is 172 m. **Hint**: Remember the formula for distance and the significance of echo timing. s.
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