IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
6.In which region temperature decreases with height ? |
| Isoposphere |
| Ionosphere |
| Mesophere |
| Ozone layer |
7.The number of AM broadcast stations that can be accommodated in a 300 kHz band width for the highest modulating frequency 15 kHz will be |
| 10 |
| 5 |
| 7 |
| 12 |
8.A 400 W carrier AM modulated to a depth of 75%. The total power of the system is |
| 512 W |
| 200 W |
| 450 W |
| None of these |
9.Lasers are used in alignment of pipes because |
| they are coherent |
| they are highly directional |
| Both (a) and (b) |
| None of these |
10.Out of the following subsystems which is used for satellite orbit position and altitude |
| Antenna subsystem |
| Thrust subsystem |
| Stabilization subsystem |
| Power subsystem |
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