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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