IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part2 : 1 to 5
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
1.The region that contains free electrons and negative ions and positive ions and positive ions is |
| Isoposphere |
| Mesophere |
| Ionosphere |
| Stratosphere |
2.In AM, if modulation index is more than 100%, then |
| The wave gets distorted |
| Efficiency increases |
| Power increases |
| None of these |
3.Voice communication is done by using |
| SSB |
| DSB-SC |
| Both (a) and (b) |
| None of these |
4.Wavelength of the waves having frequency 3000 MHz is |
| 10 cm |
| 50 cm |
| 100 cm |
| 150 cm |
5.Broadcast band in which FM lies is |
| UHF |
| VHF |
| SHF |
| None of these |
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