When an airplane flies over a television ante | vedclass

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Question

(B) When an airplane flies over a $TV$ antenna,it acts as a moving reflector for the electromagnetic waves. The $TV$ antenna receives two signals: one

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Reflection of the signal by the airplane,causing interference with the direct signal.

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(B) When an airplane flies over a $TV$ antenna,it acts as a moving reflector for the electromagnetic waves. The $TV$ antenna receives two signals: one directly from the transmitter and another reflected from the airplane. Since the airplane is moving,the path length of the reflected signal changes continuously,leading to a time-varying phase difference between the direct and reflected signals. This results in interference,which causes the flickering or shaking effect on the $TV$ screen.

When an airplane flies over a television antenna,the picture on the $TV$ screen appears to flicker or shake slightly. This is due to:

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