Q .     A series `LCR` circuit is connected across a source of alternating emf of changing frequency and resonates at frequency `f_0`. Keeping capacitance constant, if the inductance`(L)` is increased by `sqrt3` times and resistance`(R)` is increased by `1.4` times, the resonant frequency now is

EAMCET 2013
A

`3^(1/4)f_0`

B

`sqrt3f_0`

C

`(sqrt3-1)^(1/4)f_0`

D

`(1/3)^(1/4)`

HINT

Use resonant frequncy `f_0`=`1/(2pisqrt(LC))`

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