IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part1 : 21 to 25
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
21.If the frequency of EM radiations is halved then the energy of EM radiation will become |
| double |
| remains unchanged |
| becomes half |
| becomes one fourth |
22.The sampling rate lies between |
| W to 2W |
| 0 to W |
| 0 to 2W |
| 2W to 4W |
23.Optical fibres, made of glass or plastic are |
| brittle |
| leaky |
| fragile |
| insulators |
24.If 100% modulation is produced in AM, then |
| carrier frequency is equal to signal frequency |
| carrier frequency exceeds signal frequency |
| amplitude exceeds signal amplitude |
| amplitude equals signal amplitude |
25.If AM having 100% modulation, of the total transmitted power, each side band carries |
| one third |
| one half |
| one fourth |
| one sixth |
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