Beats are produced by two waves \[{{y}_{1}}=a\sin 1000\,\pi t,\] \[{{ – McqOptions

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1.	Beats are produced by two waves \[{{y}_{1}}=a\sin 1000\,\pi t,\] \[{{y}_{2}}=a\sin 998\pi t\] The number of beats heard/sec is [KCET 1998]
A.	0
B.	2
C.	1
D.	4
Answer» D. 4

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