Question
Physics Question on communication systems
In TV broadcasting both picture and sound are transmitted simultaneously. In this
A
audio signal is frequency modulated and video signal is amplitude modulated
B
both audio and video signals are frequency modulated
C
audio signal is amplitude modulated and video signal is frequency modulated
D
both audio and video signals are amplitude modulated
Answer
audio signal is frequency modulated and video signal is amplitude modulated
Explanation
Solution
In TV broadcasting both AM and FM are used. AM is for video (picture) signal and FM is for audio (sound) signal.