Following two wave trains are approaching each othery1=asin200 t, y2=a

1.	Following two wave trains are approaching each other y₁=asin200 t, y₂=asin208 t.
A.	nThe number of beats heard per second is?
B.	8
C.	4
D.	1
E.	Zero
Answer» C. 4

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Following two wave trains are approaching each othery1=asin200 t, y2=asin208 t.

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Following two wave trains are approaching each other
y₁=asin200 t, y₂=asin208 t.