In Equation 18.10, the beat equation (when adding two traveling waves of similar frequencies) is (fi – f2 fi+f2 y = 24 27 27 Cos Here the amplitude envelop is dominated by cos 27 * (5E): , why is the beat
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![In Equation 18.10, the beat equation (when adding two traveling waves of similar
frequencies) is
fi – f2
fi + f2
y = 2A cos 27
Cos 27
fi – f2
Here the amplitude envelop is dominated by cos 27
why is the beat
frequency frat = |fi - f2| and not divided by 2?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e0c1fdc-710a-4935-a514-b0e2eeac1aa2%2F52f887b1-e04c-44e3-bde1-f02bfbe2fa50%2F2lci54h_processed.png&w=3840&q=75)
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