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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