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 Akash Anand Good Work :)
@Shaswat: Try to participate in physics forum too.Upvote·0· Reply ·2013-02-28 21:59:32
 
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.
Akash Anand Good Work :)
@Shaswat: Try to participate in physics forum too.