Define what is the physical significance of the sign of k

Reference no: EM13719734

Question- Consider a 'travelling wave' represented by the amplitude function: A (x) = Ao*Exp[i k x] where the parameter "k" can be any positive or negative real number, and Ao is a positive real number. (A) What is the physical significance of the sign of k ? (B) What must the units of k be? (C) Show that the intensity, |A (x)|^2 , of this travelling wave is nonzero everywhere, and independent of the coordinate x.

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Reference no: EM13719734

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