When three wave components co-propagate at angular frequency w1, w2, w – McqOptions

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1.	When three wave components co-propagate at angular frequency w1, w2, w3, then a new wave is generated at frequency w4, which is given by?
A.	w4 = w1 w2 w3
B.	w4 = w1 + w2 + w3
C.	w4 = w1 + w2 w3
D.	w4 = w1 w2 + w3
Answer» D. w4 = w1 w2 + w3

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