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27 Two sounding bodies producing progres...

27 Two sounding bodies producing progressive given by yy = 4 sin(400nt) and y2 = 3 sin (404rt) where t is in second are situated near the ears of a person. the person will hear . (a.) 2 beats/sec with intensity ratio (4/3) between maxima and minima (b.) 2 beats/sec with intensity ratio 49 between maxima and minima (c.) 4 beats/sec with intensity ratio 7 between maxima and minima (d.) 4 beats/sec with intensity ratio 4/3 between maxima and minima

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