A charged 30 μF c

The capacitor C = 30 μF = 30 × 10 ^-6 F

Inductor L = 27 mH = 27 × 10^-3 H

The diagram is given :

Angular frequency ω_r is given by the following:

ω_r = 1/√ LC

ω_r = 1/{√(27 × 10^-3H × 30 × 10^-6F)}

on calculating, we get

ω_r = 1.11 × 10³ rad/s