Two charged spheres separated at a distance $d$ exert a force $F$ on each other. If they are immersed in a liquid of dielectric constant $2$, then what is the force (if all conditions are same)

  • [AIIMS 1997]
  • [AIIMS 2016]
  • A

    $\frac{F}{2}$

  • B

    $F$

  • C

    $2F$

  • D

    $4F$

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