EAMCET Engineering 2003 Solved Paper

A parallel plate capacitor of capacity C0 is charged to a potential V0. (i) The energy stored in the capacitor when the battery is disconnected and the plate separation is doubled is E1. (ii) The energy stored in the capacitor when the charging battery is kept connected and the separation between the capacitior plates is doubled is E2. Then, E1∕E2 value is :