Question

Capacitor A has a capacity of 15microfarad when it is filled with
a medium of dielectaic constant 15. Another capacitoy B has
a capacity of 1 microfarad with air between the plates. Both
are charged separately by a battery of 100 V. After
charging, both are connected in parallel without the ballery
and the dielectric removed. Then common potential is:
(1)0.0IV (2) 1V
(3)100V (4) 800V​

Answer 1

4 is answer....... of this