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The frequency of the power wave associated with an electromagnetic wave having an E field as
E = e– z/ δ cos (ωt – z/δ),
is given by—
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ω 8∏ -
ω 4∏ -
ω 2∏ -
ω ∏
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Correct Option: D
E = e– z/δ cos (ωt – z/δ)
The radian frequency of E wave is ω, same would be the radian frequency of associated H wave. The frequency of power wave is double the corresponding frequency of E or H wave. Thus the radian frequency is 2 ω and cyclic frequency 2ω/ 2π = ω/ π.
