JEE exam pattern in terms of topics and difficulty has been consistent over the years. It has not changed even after JEE main was introduced as a screening exam. Following is the pattern of the exams for each subject over the years:
- Math exam, algebra is the most important topic (33% of overall marks), followed by differential calculus and coordinate geometry (16% each). Other topics like integral calculus, vector and 3D geometry and trigonometry (accounting for 8-14% of all marks)
- As per the analysis of last four year question papers (2012-2015), most of the questions (44%) in math main exam can be considered easy. Medium difficulty questions were slightly less (36%) and very few truly difficult questions (10%).
- For physics exam, mechanics is the most important topic (27% of overall marks), followed by modern physics (18%). Other topics have slightly less weight in terms of marks, with optics & wave optics and electromagnetism having share of around 15%. Topics like electrostatics & current electricity, thermodynamics and fluid mechanics have marginal importance.
- As per the analysis of last four year question papers (2012-2015), most of the questions (44%) in physics main exam were considered of medium difficulty level. Easy questions were slightly less (35%) and truly difficult questions (21%). High percentage of difficult questions is contrast to math and chemistry exams.
- For chemistry exam, all the three topics are all most equally important, with organic chemistry having slightly more weight (38%) than physical chemistry (32%) and inorganic chemistry (30%).
- In terms of difficulty, chemistry exam paper is very much like math, with high reliance on easy questions (52%). In last four years, medium difficulty level questions had around 32% share, while only 16% questions were classified as truly difficult.