A parallel plate capacitor of initial capacitance C0 , attached with a vertical spring shown in figure. The upper plate of capacitior is fixed and the other plate connected with spring (of spring constant K), which is free to move. The area of each plate is A and it is an equilibrium position initally, the distance between the plates is d0 . When the capacitor is connected with an electric source of emf V, due to this a new equilibrium appears, with the distance between the plate as d1 . Mass of the each plate is m. Then choose the correct options :
