AP Physics 2
14.6 Wave Interference and Standing Waves
Two tuning forks with frequencies \(f_1 = 256 \text{ Hz}\) and \(f_2 = 260 \text{ Hz}\) are struck simultaneously in air. A student listens to the resulting combined sound wave and hears a periodic variation in volume known as beats. What is the beat frequency, and what physical mechanism causes this periodic variation in sound intensity?
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