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The beat frequency of two tones of frequencies n1 and n2 equals:
Athe sum, n1 + n2
Bthe ratio, n1 / n2
Cthe mean, (n1 + n2)/2
Dthe gap, |n1 - n2|
Answer & Solution
Correct answer: D. the gap, |n1 - n2|
Beat rate is the difference of the two frequencies.
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