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Microwave Communication
Which of the following is not a travelling wave?
e = Em sin (βx - ωt)
e = Em cos (βx - ωt)
e = Em sin (ωt - βx)
e = Em sin (βx)
Correct Answer:
e = Em sin (βx)
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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