Two sources of sound placed close to each other
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Two sources of sound placed close to each other are emitting progressive waves given by y₁ = 4 sin 600 πt and y₂ = 5 sin 608 πt. An observer located near these two sources of sound will hear(a) 4 beats per second with intensity ratio 25 : 16 between waxing and waning.(b) 8 beats per second with intensity ratio 25 : 16 between waxing and waning(c) 8 beats per second with intensity ratio 81 : 1 between waxing and waning(d) 4 beats per second with intensity ratio 81 : 1 between waxing and waning