MCQ Practice Question Antenna & Wave PropagationAntenna Efficiency An antenna accepts 100 W and radiates 80 W. Its radiation efficiency is? A20% B50% C80% D125% Show AnswerHide AnswerReport an error Correct Answer: C. 80% Explanation: Efficiency=Prad/Paccepted=80/100=0.8=80%.Reference: Standard antenna and wave propagation: antenna efficiency