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A Complete Analysis of the IIT-JEE

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An Analysis of the IIT-JEE

The complexity of the IIT-JEE arises from the fact that the questions are always unique in their context, and solving them often requires a combination of concepts from across different chapters. Nonetheless, some basic data analysis can be quite revealing and could give some important insights into how one should go about preparing for each subject. Such analyses form the basis of our understanding of the JEE.

NOTE: The section-wise breakup of marks in the four years (2001-2004) JEE Screening has been given below for your reference. Things have changed in 2009. Still this article will give you some idea about the present day IIT-JEE.

'Electrostatics and Current Electricity', and 'Electromagnetism'-each of these topics has contributed about
15% to the total marks in the past four years. Students should devote about 30% of their preparation time to the coverage of Electromagnetism and Electrostatics; because together they constitute almost one-third of the total marks and can be more scoring as the degree of difficulty when compared to Mechanics is relatively low.

'Optics' too contributes approximately 13% to the IIT-JEE Screening test. Though this trend does not conform strongly to the 1999 JEE (which only had one test- JEE Screening was introduced in 2000). Within Optics, it has been observed that problems on Physical optics are more frequent than that on Geometrical optics. Students should take care to devote about 10% of time on Optics for robust preparation.

In the past four years, approximately 20% of the total marks pertain to Mechanics. Within Mechanics, the favorite topics seem to be 'Rigid Body Rotation' and 'Motion on a Plane'. Topics like 'Simple Harmonic Motion' and 'Work and Energy', on the other hand, have been accorded relatively less priority for these years. Apparently, students have to be thoroughly prepared with Mechanics as it forms almost one-fifth of the whole JEE Screening paper. It is important for students to realize that Mechanics though important, takes relatively more time for preparation. Thus, they should restrict their preparation of Mechanics to about 30% of the total time. The next important topics are 'Modern Physics' and 'Thermal Physics', each commanding a share of about 12% of the total marks. These topics can be covered thoroughly in a relatively less time (10% of total time can be allocated to each topic); therefore, a student should look at exhaustively preparing for these topics.]

The last but not the least, 'Mechanical Waves' (sound) has accounted for approximately 12% of the total marks. Students can prepare for Wave Motion by restricting their total time spent on this particular topic to about 10%.

'Organic Chemistry' has the highest weightage with mean marks of 36%. Topics like 'Isomerism' and 'Name Reactions', and 'Stability of reaction intermediates' should be thoroughly covered. It is easier to remember the reactions and conversions involving aromatic compounds and a considerable percentage of questions from organic chemistry are based on this part. An understanding of directive influence of substituent groups, resonance and mechanism of reactions definitely helps in cracking the problems of organic chemistry.

'Physical Chemistry' is a close second with a mean weightage of 33%. In fact, questions on physical chemistry are all numerical in nature. Problems on topics like 'Electrochemistry', 'Kinetics', and 'Chemical and Ionic Equilibrium' are always asked either directly or along with some other topic. Students are advised to cover all the topics of physical chemistry. This is an area in which students can be sure of hundred percent score, provided they have a clear understanding of the concepts and a good practice of solving problems within recommended time.

'Inorganic Chemistry' and 'General Chemistry' account for 21% and 10% of the total marks. Inorganic Chemistry should be prepared by studying the group properties and periodicity. Lots of emphasis has to be given to Exceptions. Questions are asked from these topics invariably. The properties of some important compounds are also asked in the form of reactions. Remembering the reactions involved in qualitative analysis is of great advantage. Questions asked in General Chemistry mostly include that from 'Stoichiometry' and 'Chemical Bonding'.

'Calculus' accounts for about 30% of the total marks in JEE Screening. Students can score a high percentage of marks by firmly grasping the fundamentals of Calculus. More emphasis should be given in preparing 'Functions', 'Increasing/Decreasing Functions', and 'Maxima/ Minima of Functions'.

In Integral Calculus, students must practice problems on 'Definite Integral' with a proper understanding of the use of their properties for evaluation.

In 'Area of Regions Bounded by Curves', students should take care to draw figures for obtaining the limits of the integrals to be evaluated.

'Algebra' has a weightage of about 23% of the total marks. Students should emphasize practicing only those topics that have been well understood by them. Since problems on Algebra are trickier, students must practice solving as many different types of problems as they can.

'Analytical Geometry' has a weightage of about 20% of the total marks. It is also a conceptual topic. Before solving a problem, students must draw figures of the given curves to understand the problem.

The topics of 'Vectors and 3-D Geometry' and 'Probability' have a weightage of approximately 6% each. These also have to be thoroughly prepared.

'Trigonometry' carries a weightage of about 9%. It has been observed that this weightage was as high as 17% in JEE Screening 2001 and as low as 4% in JEE Screening 2003. Students, anyways, must be thorough with the topics of 'Inverse functions', 'Solutions of Trigonometric Equations', and 'Solution of Triangles'. The formulae and standard results of trigonometry must be learnt by heart in order to do well in the Mathematics paper.

Please note that the JEE is not about scoring 100% in a subject or the examination. Your aim should be to attain an optimal score in each subject, depending on your strengths and weaknesses.




'Electrostatics and Current Electricity', and 'Electromagnetism'- ------15%



'Modern Physics' and 'Thermal Physics',--------------------- 12%

'Mechanical Waves'--------------------------------------------12%




'Organic Chemistry'--------------------------------------------36%.

'Physical Chemistry'--------------------------------------------33%.

'Inorganic Chemistry'------------------------------------------21%

'General Chemistry'-('Stoichiometry' and 'Chemical Bonding'. )--------------------10%





'Analytical Geometry'--------------------------------------20%

'Vectors and 3-D Geometry' and 'Probability'------------18%



Books For IIT


    • Physics by H.C. Verma
    • Problems in physics by I.E. Irodov
    • Resnick and Halliday
    • Resnick and Halliday Circuits devices and systems by R.J. Smith
    • Problems in physics by I.E. Irodov
    • Physics by H.C. Verma
    • Physics by H.C. Verma
    • Problems in Physics by I.E. Irodov
    • Physics by H.C. Verma
    • Resnick and Halliday


    • Morrison & Boyd
    • Solutions to Morrison Boyd
    • Reaction mechanism in Organic Chemistry by Parmar ∓ Chawla
    • NCERT Inorganic Chemistry
    • Concise Inorganic Chemistry by J.D. Lee
    • IIT Chemistry by O.P. Aggarwal
    • J.D. Lee
    • O.P. Aggarwal
    • R.C.Mukerjee


    • High school mathematics by Hall and Knight
    • IIT Maths by M.L. Khanna
    • G.N.Berman
    • Calculus and analytic geometry by Thomas and Finney
    • Coordinate geometry by Loney
    • IIT Maths by M.L. Khanna
    • I.A.Maron
    • IIT Maths by M.L. Khanna



Starting Preparation For IIT JEE

The best time to start preparation is at the beginning of 11th class. Students are fresh after the break after boards and a lot more can be learnt. Students who start late often end up leaving some key topics of 11th class JEE syllabus. Also, if you start your preparation in 12th class then the amount of hard work is increased manifold due to additional pressure of 12th boards, so chances of getting a high rank in JEE are decreased. There is a big transition from the mugging up study of 10th class to more understanding based study of 11th class. So you shouldn't get bogged down by seeing the level of complexity in JEE exam.

The first two or three months should be spent in revising your basic concepts (topics like algebra, mecanics) which had been taught in 9th class. Concepts in topics like algebra, mechanics and stoichiometry should be studied in great detail as they also form the basis for other topics and are very scoring. There should be no doubt in your mind about these concepts. For these, develop the habit of inquisition. Clear all your doubts so that mentally you feel confident tackling any concept. A key in this area is problem-solving. Regular problem solving not only strengthens the concepts, but also increases your mental sharpness which is must for JEE.Initially problems of low level should be tried and only when you have mastered them, you should go on to solving intricate JEE type problems. You should have systematic plan for the preparation of JEE. Regular hours should be allotted to mastering concepts and problem-solving. It is not necessary to memorise the lessons and formulae. Understand the derivations of formulae and apply the formulae to solving problems. Slowly these formulae will settle down in your brain and you will be able to recall them under any situation. What is required is a clear understanding and an easy familiarity with the concepts and laws. Maximum attention should be paid to solving problems.Try to be analytical rather than being intutive. Remember that hardwork pays! You should first take up a problem and try to solve it yourself. You should understand what is given and what is required, recall what principles, laws, equations


Course Planning

Course planning is essential in the sense ,that it can get you at the top in rank list.This planning should be done by the student in 11th class itself . From this year, a screening test is being conducted and so proper planning becomes all the more important.Have a look at all the topics and shortlist topics,and months wherein you plan to complete them.Finishing syllabus atleast a month before the exam is essential.The summer vacations in 12th class are the best time to finish a huge lot of syllabus.I can suggest the following course plan for students in 11th class.

JUNE TO OCTOBER : Mathematical concepts used in Physics, Basic mechanics, stoichiometry, general chemistry----atomic structure, chemical bonding, periodic table, algebra---number theory, quadratic equations, progressions.

OCTOBER TO JANUARY :Complete Mechanics, waves, Physical Chemistry--equilibrium, heat, kinetics, thermochemistry, electrolysis, algebra -----induction, complex numbers, trignometry.

JANUARY TO MAY : Heat, fluid mechanics, gravitation, Inorganic chemistry---properties and metallurgy of metals and non metals, gas laws, analytic geometry, permutations and combinations, binomial theorem.

MAY TO AUGUST : Electrostatics and electricity, electrochemistry, solutions, solids, qualitative analysis, transition metals, differentiation and integration.

AUGUST TO NOVEMBER : magnetism, optics, modern physics, organic chemistry, differential equations, probability, vectors.


By following this plan,course will be finished in time and revision can also done,to ensure maximum success in JEE.To maximize your potential you have to planned .My next topic tells you about certain important topics to which special interest should be given.


Important Topics

Choosing the right topics for maximum study is very important not only for clearing JEE but also for getting a high rank. Lots of topics in JEE syllabus require a huge lot of time, incomparable to that required by other topics. Spending too much time on these topics and ignoring other topics leads to drastic failure in rank.Lots of topics in JEE are very easy and are of NCERT level.The key to topping JEE is to maximize your scoring in these topics which boosts the rank. Many such topics require considerably less time and is much much less than the time required by certain other topics with proportionate marks.You should spend more time on these topics and try to earn full marks in such topics.I list a few of these topics:

MODERN PHYSICS AND ELECTRONICS :most of the questions easy and similar to past JEE questions.

WAVE OPTICS :most of the questions are similar to past JEE questions

INORGANIC CHEMISTRY AND GENERAL CHEMISTRY :most of the questions are of NCERT level and are simple.

SOLID STATE :Most of the questions are very easy.

PROBABILITY AND DIFFERENTIATION :most of the questions are simple and NCERT level.

DIFFERENTIAL EQUATIONS :most of the questions are similar to past JEE questions.

By spending legible time on these topics ,the scoring in JEE will be boosted and only will you clear JEE but also get a high rank.But beware , don't neglect there other topics. In topics like mechanics, electricity , physical chemistry and analytical geometry , if the concepts are clearly understood then many of the questions pertaining to these topics can be easily handled.My next topic discusses the marks and the rank which can be expected with those marks.




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