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Q.

A dielectric slab fills the lower half. region of parallel plate capacitor as shown in figure. Take plate area as A  

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a

Equivalent capacity of the system is ϵ0A2d(1+K)

b

Net charge on lower & upper. half of-left hand plate  are different

c

Net charge on lower half of .the plate is K0A2d×V

d

The net charge of lower hallf of the left hahd plate is 1K times the charge on upper half of plate 

answer is A, C, D.

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Detailed Solution

This system can be considered as two capacitors in  parallel, with C1=ϵ0A2d&C2=Kϵ0A2d

C1 is due to upper half of two plates while C2 is due to  lower half. 

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As potential difference two capacitors are same, charge would be different as capacities are different. 

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