The effective length of an 1/2 antenna (Given Rr = 73 Ω and (Ae)max = 0.34λ2 and η = 120p) is __________ .-A-0.6348 λB-0.5133 λC-0.1587 λD-0.3714 λ-B-0.5133 λ

B 0.5133 λ = le = 0.5133λ.