JEE Mains 2013 - Each set will have same difficulty level
As per an official notice released by CBSE different set will be used during the JEE Main examination. In each set, each subject carries the same percent of easy, medium and difficult questions. So ensuring the same difficulty level of each set of question paper as per the practice of the Board in the year 2012.
"The 1st Joint Engineering Entrance Examination [JEE (Main)] is to be conducted in pen & paper made on 7th April 2013. In computer mode, this examination is to be conducted on 9, 22, 23 & 25th April 2013. The different sets of question papers are used on the different dates of the examination.
It is brought to the notice of all stakeholders of this examination that the subject experts who have prepared these question papers have certified that the entire syllabus of Mathematics, Physics and Chemistry has been covered in each question set by dividing the syllabus of each subject into appropriate number of units and choosing equal number of questions from each unit.
Further, in every set, each subject carries the same percentage of easy, medium and difficult questions. This ensures the same difficulty level of each set of question paper as per the practice of the Board in the year 2012." - Executive Director [JEE(Main)]