AP EAPCET 19th May 2023 Shift 1 Solved Paper

Two identical capacitors A and B are connected as shown in the circuit. Initially the switch ' S ' is closed. Now the switch is opened and the free space between the plates of the capacitors is filled with a dielectric of dielectric constant 3 . The ratio of total electrostatic energy stored in the capacitors before and after introduction of the dielectric is