engineering recuitment BHEL Engineer Trainee Mock Test 2025 Communication Systems Introduction To Digital Modulation Baseband Modulation
Which of the following is/are correct with respect to AM and FM?
1. Frequency is changed in FM and amplitude is changed in AM
2. FM can transmit at longer distance
3. FM is more susceptible to noise than AM
4. FM has a higher bandwidth and sound quality
5. Phase remains constant in AM
1
1, 3, 4 only
2
1, 2, 3, 4 and 5 only
3
1, 3, 4 and 5 only
4
1 and 4 only