IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
16.In amplitude modulated wave, power content of the carrier is maximum when m is |
| 0 |
| 1 |
| 0.2 |
| 0.3 |
17.Modem is used to |
| Modulate the digital signals |
| Covert analog signals to digital ones |
| Both (a) and (b) |
| None of these |
18.Demodulation |
| is done at the transmitting stations |
| is done at the receiving station |
| removes side bands |
| rectifies modulated signal |
19.Select the incorrect statement |
| FM receptions is quite immune the noise |
| Efficiency of FM transmission if high |
| High fidelity reception is obtained in FM |
| FM signals can be easily coded |
20.Dibits in PM are |
| Two-phase signals |
| Four-frequency signals |
| Four-phase signals |
| Two-frequency signals |
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