AP EAPCET 17th May 2023 Shift 2 Solved Paper

The space between the plates of a parallel plate capacitor is filled with a mica sheet of thickness 1×10−3m and a fiber sheet of thickness 0.5×10−3m. The dielectric constants of mica and fiber are 8 and 2.5 respectively. If the fiber breaks down at an electric field of 6.4×10−6Vm−1 then the maximum voltage that can be applied to the capacitor is