JEE Main 2021 Physics question
For changing the capacitance of a given parallel plate capacitor, a dielectric material of dielectric constant K is used, which has the same area as the plates of the capacitor. The thickness of the dielectric slab is , where 'd' is the separation between the plates of parallel plate capacitor. The new capacitance (C') in terms of original capacitance () is given by the following relation -
Answer: (C)