Question

koi solve kr do.......​

Answer 1

Consider V to be the voltage acRoss the capacitor when the dielectric is not placed

The voltage decreases in the area where the dielectric is placed

V1=V/K1=V/2K2

V2=V/K2

Now substitute V/K2 as V2 in V1

V1=V2/2

V2=2V1

I hope this helps ( ╹▽╹ )