Two sources of sound placed close to each other are wmitting progressive waves given by `y_1=4sin600pit` and `y_2=5sin608pit`. An observer located near these two sources of sound will hear:A. 4 beats per second with intensity ratio 81:1 between waxing and waningB. 4 beats per second with intensity ratio 25:16 between waxing and waningC. 8 beats per second with intensity ratio 25:16 between waxing and waningD. 8 beats per second with intensity ratio `81:1` between waxing and waning

Two sources of sound placed close to each other are wmitting progressi

1.	Two sources of sound placed close to each other are wmitting progressive waves given by `y_1=4sin600pit` and `y_2=5sin608pit`. An observer located near these two sources of sound will hear:A. 4 beats per second with intensity ratio 81:1 between waxing and waningB. 4 beats per second with intensity ratio 25:16 between waxing and waningC. 8 beats per second with intensity ratio 25:16 between waxing and waningD. 8 beats per second with intensity ratio `81:1` between waxing and waning
Answer» Correct Answer - A `(I_1)/(I_2)=((A_1+A_2)^2)/((A_1-A_2)^2)=(81)/(1)` Beat frequency `=304-300=4Hz`

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