MHT CET 2023 Physics question

PhysicsElectrostatic Potential and CapacitanceMHT CET 2023

In a parallel plate capacitor with air between the plates, the distance 'd' between the plates is changed and the space is filled with dielectric constant 8. The capacity of the capacitor is increased 16 times, the distance between the plates is

Answer: (C)

Solution

With air, . After the change the plates are at distance with a dielectric of constant , so . The condition gives $Missing argument for \frac\frac{8ε_0

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Question ID VK-097807