1.

A uniform plane electromagnetic wave incident normally on a plane surface of a dielectric material is reflected with a VSWR of 3. What is the percentage of incident power that is reflected (a) 10% (b) 25% (c) 50% (d) 75%

Answer»

Correct option (b) 25%

Explanation:

VSWR = (1 + |Γ|)/(1 - |Γ|)

3 = (1 + |Γ|)/(1 - |Γ|)

Γ = 0.5

Pr/Pi = Γ2 = (0.5)2

= 0.25

25% of incident power is reflected.



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