What a low flying aircraft passes over head, we sometimes notice a slight shaking of the picture on our TV screen. This is due to

Options

A. diffraction of the signal received from the antenna
B. interference of the direct signal received by the antenna with the weak signal reflected by the passing aircraft
C. change of magnetic flux occurring due to the passage of aircraft
D. vibrations created by the passage of aircraft.

Answer

C

Explanation

The flight of the plane causes a change in magnetic flux and causes a disturbance.