Two sources of sound placed close to each other are emitting progressive waves given by\[{{y}_{1}}=4\sin 600\pi t\] and\[{{y}_{2}}=5\sin 608\pi t\]. An observer located near these two sources of sound will hear:

4 beats per second with intensity ratio 25 : 16 between waxing and waning.

8 beats per second with intensity ratio 25 : 16 between waxing and waning

8 beats per second with intensity ratio 81: 1 between waxing and waning

4 beats per second with intensity ratio 81 : 1 between waxing and waning

Two sources of sound placed close to each other are emitting progress

1.	Two sources of sound placed close to each other are emitting progressive waves given by\[{{y}_{1}}=4\sin 600\pi t\] and\[{{y}_{2}}=5\sin 608\pi t\]. 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
Answer» E.