Di electric

THIS SUM NOT RECOMMENDED THOUGH!

:P

i hav the solution..who doesn't? :P

actually i tried the q for 2-hours.. i guess my theory knwdge is insufficient....btw to be true i dont understand the solution at all...:P

I second Shubhodip but I also agree with Vivek. This question's standard, I feel, is not within the confines of the JEE level.