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Communication Systems

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2022
A radar sends an electromagnetic signal of electric field $\left(\mathrm{E}_0\right)=2.25 \mathrm{~V} / \mathrm{m}$ and magnetic field $\left(\mathrm{B}_0\right)=1.5 \times 10^{-8} \mathrm{~T}$ which strikes a target on...
JEE Main Physics Easy
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Q JEE MAIN 2023
Match List-I with List-II Choose the correct answer from the options given below :-
JEE Main Physics Easy
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Q JEE MAIN 2023
For an amplitude modulated wave the minimum amplitude is 3V, while the modulation index is 60%. The maximum amplitude of the modulated wave is:
JEE Main Physics Medium
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Q JEE MAIN 2023
To radiate EM signal of wavelength $\lambda$ with high efficiency, the antennas should have a minimum size equal to :
JEE Main Physics Easy
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Q JEE MAIN 2023
The power radiated from a linear antenna of length $(\ell)$ is proportional to (Given, $\lambda=$ Wavelength of wave):
JEE Main Physics Easy
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Q JEE MAIN_2023
Match List I with List II Choose the correct answer from the options given below...
JEE Main Physics Easy
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Q JEE MAIN 2023
Match List I with List II:

Choose the correct answer from the options given below :
JEE Main Physics Easy
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Q JEE MAIN 2023
A modulating signal is a square wave, as shown in the figure.

If...
JEE Main Physics Easy
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Q JEE MAIN 2023
Given below are two statements
Statement I: For transmitting a signal, size of antenna (l) should be comparable to wavelength of signal
(at...
JEE Main Physics Easy
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Q JEE MAIN 2023
Two bodies are having kinetic energies in the ratio 16 : 9. If they have same linear momentum, the ratio of their masses respectively is...
JEE Main Physics Medium
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