The wavelength of a wave with propagation constant (0.1

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The wavelength of a wave with propagation constant (0.1 π + j 0.2 π) m^{– 1} is—

1. 2 m
  √0.05
2. 10 m
3. 20 m
4. 30 m

Correct Option: B

Here propagation constant
Y = (0.1 π + j 0.2 π) m^{– 1} is given
β = 0.2 π
so

β =		2∏	= λ =	2∏	=	2∏	= 10m
		λ		β		⋅2∏