Question:
if a message signal of frequency ' $f_{\mathrm{m}}$ ' is amplitude modulated with a carrier signal of frequency $\mathrm{I}_{c}^{\prime}$ and radiated through an antenna, the wavelength of the corresponding signal in air is:
Correct Option: , 4
Solution:
(4)
Given frequency of massage signa $]=f_{m}$
frequency of carrier signal $=f_{c}$
the wavelength of the corresponding signal in air is $\Rightarrow \lambda=\frac{c}{f_{c}}$
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