As shown in the figure, a dielectric of constant K is placed between the plates of a parallel plate capacitor and is charged to a potential V using a battery. If the dielectric is pulled out after disconnecting the battery from the capacitor, the final potential difference across the plates of the capacitor is

• A

  $\left(1+\frac{1}{\mathrm{~K}}\right) 2 \mathrm{~V}$
• B

  2 KV
• Correct answer
  C

  $\frac{2 \mathrm{~V}}{\left(1+\frac{1}{\mathrm{~K}}\right)}$
• D

  $\frac{\mathrm{V}}{2}\left(1+\frac{1}{\mathrm{~K}}\right)$

Hence, the correct answer is option: 'C'.