What is the full form of ‘AM’ regarding to radio broadcasting?
(A) Amplitude Movement
(B) Anywhere Movement
(C) Amplitude Matching
(D) Amplitude Modulation
Correct Answer : Amplitude Modulation
Question Asked : SSC Section Officer (Commercial Audit) Exam 2007
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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Tags : Physics
