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Q. |
When a vehicle passes, TV reception gets distorted. This is because – |
A. | metal reflects radiowaves |
B. | spark plug creates electromagnetic disturbances |
C. | vehicle pollution affects the performance of the TV components |
D. | modern vehicles use electro ignition system |
Answer» B. spark plug creates electromagnetic disturbances | |
Explanation: This is caused due to the interference caused by the electromagnetic waves generated by a passing vehicle. These waves were within the same frequency range as that of the waves of TV reception and hence caused Interference. interference is a phenomenon in which two waves superimpose to form a resultant wave of greater or lower amplitude. |
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