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.
2k
0
Do you find this helpful?
19

View all MCQs in

Physics

Discussion

No comments yet