Two vibrating tuning forks produce progressive waves given by \( \mathrm{y}_{1}=4 \sin (500 \pi ...

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Two vibrating tuning forks produce progressive waves given by \( \mathrm{y}_{1}=4 \sin (500 \pi \mathrm{t}) \) and \( \mathrm{y}_{2}=2 \)
\( P \) \( \sin (506 \pi t) \). These tuning forks are held near the W ear of a person. The person will hear
(1) 3 beats/s with intensity ratio between maxima and minima equal to 4 .
(2) 3 beats/s with intensity ratio between maxima and minima equal to 9.
(3) 6 beats/s with intensity ratio between maxima and minima equal to 4 .
(4) 6 beats/s with intensity ratio between maxima
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