Initially key was placed on (1) till the capacitor got fully charged. Key is placed on (2) at `t=0`. The time when the energy in both capacitor and inductor will be same-
Options:
(a) `(pisqrt(LC))/4`
(b) `(pisqrt(LC))/2`
(c) `(5pisqrt(LC))/4`
(d) `(5pisqrt(LC))/2`