Microwave Communication - ECE Questions and Answers

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Which of the following is not a travelling wave?

e = E_m sin (βx - ωt)

e = E_m cos (βx - ωt)

e = E_m sin (ωt - βx)

e = E_m sin (βx)

Answer : Option D

Explanation :

In a travelling wave both x and t increase simultaneously so that a constant phase point moves in the direction of positive (or negative) x.

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