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JEE PHYSICS MCQ: COMMUNICATION SYSTEMS

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Understanding +4 | -1

To radiate EM signal of wavelength

\lambda

with high efficiency, The antennas should have a minimum size equal to:

View answer and explanation

Correct option: C

\frac{\lambda}{4}

Option C (

\frac{\lambda}{4}

) is correct because the minimum size of an antenna for efficient EM signal radiation is a quarter of the wavelength.

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