A-Level Physics Question Analysis Topic: Physics - Waves (Communication)
Exam Questions:
1) Define amplitude modulation in communication system.
2) What do you mean by bandwidth of a signal? Give its importance.
Answer:
For A-Level Physics, you should know:
1) Amplitude modulation: The most straightforward method of signal modulation is amplitude modulation, or AM. Amplitude modulated signals are simple to produce. The prerequisites are also feasible. The original baseband signal is represented by the amplitude of the synthesized signal when an amplitude modulated signal is produced.
2) The complete spectrum of frequencies connected to a transmission or channel is known as its bandwidth. The quantity of data that can be transferred in a given amount of time depends on a signal's bandwidth. The transmission of data occurs at a higher rate the wider the bandwidth.
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