Two longitudinal waves: s1 = 3cos(11t) & s2 = 3cos(10t) interfere. Wha – McqOptions

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1.	Two longitudinal waves: s1 = 3cos(11t) & s2 = 3cos(10t) interfere. What is the amplitude of the resulting wave?
A.	6cos(0.5t)
B.	6sin(0.5t)
C.	6cos(10.5t)
D.	6sin(10.5t)
Answer» B. 6sin(0.5t)

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