A capacitor of capacitance C = 15 pF is charged with voltage V. The electric field inside the capacitor with dielectric is 106 V/m and the area of the plate is 10-4 m2, then the dielectric constant of the medium is: (ε = 8.85 x 10-12 in S.I units)
(1) 12.47
(2) 8.47
(3) 10.85
(4) 14.85