Mechanics
Electricity
Optics
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1
JEE Main 2023 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Match List I with List II
| List-I |
List-II |
||
|---|---|---|---|
| A. | AM Broadcast | I. | 88-108 MHz |
| B. | FM Broadcast | II. | 540-1600 kHz |
| C. | Television | III. | 3.7-4.2 GHz |
| D. | Satellite Communication | IV. | 54MHz - 890MHz |
Choose the correct answer from the options given below :
2
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A modulating signal is a square wave, as shown in the figure.
If the carrier wave is given as $$\mathrm{c(t) = 2\sin(8\pi t)}$$ volts, the modulation index is :
3
JEE Main 2022 (Online) 29th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Find the modulation index of an AM wave having $$8 \mathrm{~V}$$ variation where maximum amplitude of the AM wave is $$9 \mathrm{~V}$$.
4
JEE Main 2022 (Online) 28th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A FM Broadcast transmitter, using modulating signal of frequency 20 kHz has a deviation ratio of 10. The Bandwidth required for transmission is :
Questions Asked from MCQ (Single Correct Answer)
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