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A condenser of capacitance of 2.4muF, is...

A condenser of capacitance of `2.4muF`, is used in a transmitter to transmit a `lamda` wavelength. If the inductor of `10^(-8)H` is used for resonant circuit, then value of `lamda` is

A

292 m

B

400 m

C

334 m

D

446 m

Text Solution

Verified by Experts

(a) Frequency `=n=(c)/(lambda)=(3xx10^(8))/(lambda)`
also , resonant frequecncy `=n=(1)/(2pisqrt(LC))`
or `LC=(1)/(4pi^(2)n^(2))` or `C=(lambda^(2))/(4pi^(2)c^(2)L)`
or `lambda=sqrt(4pi^(2)c^(2).LC)`
or `lambda =sqrt(4pi^(2)xx(3xx10^(8))^(2)xx24xx10^(-8))implies lambda=292 m`
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