JEE Main · PhysicsEasy
What is the primary purpose of a modem in a communication system?
- A.To amplify the signal strength
- B.To modulate and demodulate signals
- C.To filter out high frequency noise
- D.To increase the bandwidth of the channel
Show correct answer & step-by-step solution
Correct answer: B — To modulate and demodulate signals
Solution
The term modem is a contraction of modulator and demodulator. Its primary function is to convert digital signals into analog signals for transmission and vice versa.
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