InterviewSolution
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InterviewSolution
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An `L-c` resonant circuit contains a `200 pF` capacitor and a `200muH` inductor. It is into oscillation coupled to an antenna. The wavelength of the radiated electromagnetic waves isA. `377 mm`B. `377 m`C. `377 cm`D. `3.77 cm` |
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Answer» Correct Answer - B Frequency of `L-C` oscilaltion is `v = (1)/(2pisqrt(LC)) = (1)/(2 xx 31.4sqrt(200 xx 10^(-6) xx 200 xx 10^(-12)))` `= 0.0796 xx 10^(7) Hz` So, wavelength `lambda = (c)/(v) = (3 xx 10^(8))/(0.0796 xx 10^(7)) = 377 m` |
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