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A sound wave has a wavelength of 7.6 meters. Calculate the frequency in Hz if the speed of sound is 323 meters per second. Express your result with a single digit of precision.

A) 4 Hz
B) 40 Hz
C) 400 Hz
D) 4000 Hz

Answer :

Final answer:

The frequency of a sound wave with a wavelength of 7.6 meters and a speed of sound of 323 meters per second is approximately 42.5 Hz, which, with a single digit of precision, rounds to option B) 40 Hz.

Explanation:

To calculate the frequency of a sound wave when given the wavelength and the speed of sound, we can use the formula:

frequency (Hz) = speed of sound (m/s) / wavelength (m)

From the given values, we have a wavelength of 7.6 meters and a speed of sound of 323 meters per second. Plugging these values into the formula, we get:

frequency = 323 m/s / 7.6 m

frequency ≈ 42.5 Hz

With a single digit of precision, the nearest option is B) 40 Hz.

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