In the given circuit, charge $Q_2$ on the $2\ μF$ capacitor changes as $C$ is varied from $1\ μF$ to $3\ μF$. $Q_2$ as a function of '$C$' is given properly by: (figures are drawn schematically and are not to scale)
  • A

  • B

  • C

  • D

JEE MAIN 2015, Diffcult
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