A capacitor C is first charged fully with potential difference of V_0 and disconnected from the battery. The charged capacitor is connected across an…

A capacitor $\displaystyle C$ is first charged fully with potential difference of $\displaystyle V_0$ and disconnected from the battery. The charged capacitor is connected across an inductor having inductance $\displaystyle L$. In $\displaystyle t$ s $\displaystyle 25$% of the initial energy in the capacitor is transferred to the inductor. The value of $\displaystyle t$ is $\displaystyle \_\_\_\_$s.