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Question

A parallel- plate capacitor is placed in such a way that its plates are horizontal and lower plate is dipped into a liquid of dielectric constant k and density ρ. Charge on plates of capacitor is Q and Q. [+Q is charge on upper plate]

A
Level of liquid in the space between plates rises.
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B
Level of liquid in the space between plates falls.
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C
Net charge on the lower plate is Qk.
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D
Charge induced on the upper surface of liquid is Q(1k)
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Solution

The correct options are
A Level of liquid in the space between plates rises.
C Net charge on the lower plate is Qk.
Due to negative charge induced on upper surface of liquid level of fluid rise.
Induced charge is q(11k)

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