answer is (c)
5 Answers
Shaswata Roy
·2013-02-28 05:33:32
Ans - (c)
Since P and Q are dimensionally different,taking their difference is dimensionally wrong.
Akash Anand Good Work :) @Shaswat: Try to participate in physics forum too.
Upvote·0· Reply ·2013-02-28 21:59:32