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Q. |
What is the full form of 'AM' regarding radio broadcasting? |
A. | Amplitude Movement |
B. | Anywhere Movement |
C. | Amplitude Matching |
D. | Amplitude Modulation |
Answer» D. Amplitude Modulation | |
Explanation: AM broadcasting is the process of radio broadcasting using amplitude modulation. AM was the first method of impressing sound on a radio signal and is still widely used today. An AM receiver detects amplitude variations in the radio waves at a particular frequency. It then amplifies changes in the signal voltage to drive a loudspeaker or earphones. |
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