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(A) For efficient radiation and reception of electromagnetic waves,the antenna length should be comparable to the wavelength of the signal. In practic

Vedclass · Accepted Answer

$\lambda /4$

Vedclass · Answer

(A) For efficient radiation and reception of electromagnetic waves,the antenna length should be comparable to the wavelength of the signal. In practice,the most efficient antenna length is $\lambda /4$,which allows for resonance and effective impedance matching. Therefore,the minimum length required for an antenna to transmit or receive signals efficiently is $\lambda /4$.

For efficient transmission of sound waves of wavelength $\lambda$,the minimum length of the antenna should be.....

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