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Sagot :
The beat frequency he hears in his head will be 1.6 Hz
What is the frequency of the sound?
A sound pressure wave's frequency, also known as pitch, is the number of times it repeats itself every second.
The frequency of the sound is the inverse of the period. If the wavelength of a wave is short. The wave will indeed have a lower frequency. A longer wavelength denotes a lower frequency.
Given data;
The frequency at which the fluorescent light "hums",f=120 Hz
The frequency at which the bored grad student "hums",f'=118.4 Hz
The beat frequency he hears in his head is,fₐ=?
The beat frequency he hears in his head is found as;
fₐ = f-f'
fₐ = 120 - 118.4 Hz
fₐ = 1.6 Hz
Hence the beat frequency he hears in his head will be 1.6 Hz.
At 120 Hz, a fluorescent light "hums." At 118.4 Hz, a Ph.D. student who is bored hums. He hears 1.6 Hz as the rhythm frequency in his brain.
Hence the beat frequency he hears in his head will be 1.6 Hz
To learn more about the frequency of the sound, refer to the link https://brainly.com/question/1435829.
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