IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part2 : 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.Tropospheric scatter happens in |
| VHF |
| UHF |
| HF |
| SHF |
17.The product demodulator is also known as |
| Balance demodulator |
| SSB demodulator |
| Amplitude discriminator |
| None of these |
18.Select the wrong statement in case of EM waves. |
| EM waves are transverse in nature |
| Travel in free space at a speed of light |
| Are produced by accelerating charges |
| Travel in all media with same speed. |
19.Crystal oscillator is used to generate carrier waves because of |
| good stability |
| high power output |
| no buffer stage is required |
| None of these |
20.Space waves normally propagated in |
| UHF |
| VHF |
| HF |
| SHF |
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