JEE Mains 2013 Paper Analysis

Here is expert analysis from two leading test prep academies following the first day of JEE Mains 2013 Paper (Offline mode). 

JEE Mains Paper Analysis by Career Launcher
Paper Pattern: 30 questions for each subject (Physics, Chemistry, Maths) were asked in the paper.
Marking pattern: For every correct answer: 4 marks awarded and for every incorrect answer: ¼ marks deducted.

PHYSICS paper Analysis
18 questions out of 30 were easy, requiring very less calculation and of the JEE Advanced syllabus. About 4 -5 questions were a bit lengthy due to calculations but could be done by students who are preparing for the Advanced version. Remaining questions were from the topics exclusive to the Mains exam like EM waves, semiconductors etc. A student who had prepared well for the board exams would have found these questions easy to do.

8-10 questions could be attempted correct by an average student. A score of 45-50 can be considered as good score.

CHEMISTRY paper Analysis
10 questions out of 30 were very easy, can be answered by just reading the question. 5 questions were easy but required a bit of calculation for solving, 3 questions were factual in nature. 10-12 questions required a bit of concept application in which students are prone to commit mistakes. In one question, no option seems to be correct, and in another, options were not consistent with the statement of the question.

A score of 60-67 can be considered as a good score.

MATHS paper Analysis
Out of the 30 questions,12 questions to be easy, 7 questions are lengthy, 6 questions are conceptual, 5 are tough questions.
There were 7 questions from Calculus out of which 4 were easy, 7 questions were from Algebra out of which 4 were easy, 5 questions from Co-ordinate Geometry out of which 4 were easy. There are only two questions from Trigonometry out of which one was easy.
Surprisingly there are nine questions from Vectors, 3-D Geometry, Matrices, Determinants, Statistics, Logic and LPP out of which four are easy.
A score of 50-55 can be considered as a good score.

An overall score of 115-120 can be considered as a cut-off score for qualifying for JEE Advanced, i.e., being in the top 1.5 lakh candidates.

JEE Main Paper Analysis by AAKASH

The overall paper is well balanced and checks a student for his knowledge as well as problem solving ability of the student. As was expected the severity level of the paper seemed slightly lesser than last year’s AIEEE exam. Furhtermore, as per the guidelines, the paper was primarily based on NCERT. If we look at the paper composition in detail, as far as Physics is concerned, the questions were distributed over the entire syllabus barring apart a few topics like laws of motion where not even a single question was asked. Out of 30 questions, 14 questions were of easy level, 10 questions were medium and 6 questions were hard. So, the expected cut off for physics is about 50 out of 120, for a student to able to qualify into top 1.5 lacs students. Any student who has practiced entire NCERT will must be able to score good. The hard questions were of very good quality and would have confused some students.

With regards to the chemistry portion of JEE (Main) 2013 (Code-P) has 12 easy, 10 moderate and 8 difficult questions. The average and below average students should be able to solve all the easy questions. The cut off should be around 48 marks out of 120 marks (40%). Above average students will be able to solve most of the moderate questions. Most of the questions are based on the theory given in NCERT text book. However, in Code-P, the Question nos. 38, 44, 48 and 59 do not have the required theory in NCERT text book. Question No. 32 has two correct options as given in NCERT. Question no. 38 has wrongly written mean square speed instead of root mean square speed. The question in its present form cannot be solved. Question no. 44 has apparently all the four options correct. It does not have any correct answer. Question no. 59 is based on Bhopal gas tragedy for which nothing is given in NCERT.

Paper of Mathematics was also well balanced in terms of difficulty level and topical distribution. Ten, eight and five questions were asked from algebra (10), calculus (8) and co-ordinate geometry (5), respectively. Two questions were same as given in NCERT text book while few others were similar. With nearly 60% questions under the category of easy, this paper was on the lines of last year’s AIEEE paper. The assertion-reasoning questions were good enough to confuse any student and will definitely play major role in deciding rank.

The JEE (Main) (Offline mode) was conducted on 7^th April, 2013. About 14 lakh students are estimated to have appeared in the offline test. Last year 11.5 lakh candidates had taken the  AIEEE test. Out of these, top 1.5 lakh students will be eligible for JEE Advanced exam which is the gateway to IITs, IIT-BHU and ISM Dhanbad.

Readers are advised to treat it as a reference only, as this is as per the analysis obtained from experts based on Day 1 of the JEE Main exam.

Also see: JEE Advanced 2013 Exam Analysis