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Sunday, 8 December 2013

JEE Main: Online vs Offline. What to choose?

As we all know. Like last year JEE main will be held via two modes this year also:- Online and Offline. The Online mode of exam was introduced last year which provided choice of exam mode to the students. Here are a few advantages and disadvantages of both modes you should consider while choosing.

Online

Advantages

  1. About 10 minutes of Extra time since you don't have to bother filling out bubbles in the OMR sheet.
  2. Better facilities such as Comfortable seats, Conditioned rooms, Little distractions (like a radio playing in full volume in nearby shop), Lesser formalities (In written based mode teacher goes to each student and asks him to carry out the formalities like Thumb Impression, signature, etc. In the process other students are disturbed. If you are unlucky you might end up with a strict scolding lady teacher with a shrill voice... I swear you'd want to kill her right then. That teacher ruined my paper to be honest... In online mode, things are usually smooth)
  3. You might get lucky if there is a power cut or related problem. The clock stops and resumes only when problem is resolved. In the meantime you might solve the problems you have read already and get extra time.
  4. At a time you are focused on one problem only, While in offline mode you are focused on the whole page.

Disadvantages

  1. You are bound to make guesses since it takes only a click of mouse as opposed to a tedious task of filling out bubbles. This is a very common problem, esp. for students who are overconfident and attempt many questions and get negatives.
  2. We all have practice for the pen and paper mode. So, Any novel experience is risky. Especially for people who do not have computers or who do not spend much time on computers. Even if you do spend a lot of time, we all know computers are not for studying. At least for JEE
  3. Looking up the problems, and then penning the solution down on the rough sheet is a hassle.
  4. Depending on your choice of exam date, You might end up with either a difficult or an easy paper. However JEE claims to make the papers of equal difficulty. It is obvious that the questions are not the same. Which suggests that Its all a matter of luck if you got the questions you are good at or something completely strange.

OFFICIAL CBSE Mock tests for JEE Main Computer Based Test

CBSE has released four official JEE main Mock tests for practice in computer based exam.
Here are the links

Friday, 29 November 2013

I.E Irodov Problems in General Physics For IIT JEE Advanced Review


Igor Yevgenyevich Irodov was a Russian Physicist known for his book "Problems In General Physics". The book has a standard set of problems recommended for preparation for International Physics Olympiad. It has about 1900 subjective questions that bring conceptual clarity which is required for JEE type exams.
Each Chapter opens up with summary of principal formulas for review. The book has Six parts
  1. Mechanics
  2. Thermodynamics and molecular physics
  3. Electrodynamics
  4. Oscillations and waves
  5. Optics
  6. Atomic and nuclear physics
Of the six sections only two sections viz. Mechanics and Electrodynamics are useful for students preparing for JEE. As the two topics require crystal clear concepts problems from Irodov help a lot. Firstly, They will improve your concepts. Secondly, You will be boosted up with confidence once you have solved the book. Because there is no other book higher than Irodov for preparation of JEE.

Before attempting the questions it is suggested that you take an introductory course in calculus. Knowledge of Integration and differentiation is required before attempting the questions without which you wouldn't be able to do much. For students studying in class 11 who don't have any idea about calculus but are encountered by random problems that use it. It becomes a major problem especially while solving Irodov. However you must know that once you've passed through class 12th you will find that only basic knowledge was required for implementation of calculus in physics and you couldn't done it then too. In most coaching institutes teachers give a sneak peek into the calculus which further creates a fear of it. The trailer seems to be a scary one. Only when you see the full movie you realize that it was a piece of cake.

 You must note that few problems in irodov are not JEE relevant. For Engineering entrance you must focus on the paper pattern and the syllabus strictly. Deviating from the syllabus is a waste of time. I hereby list the problems that are not JEE relevant. You must not waste your time on them

 DONT SOLVE THESE PROBLEMS
Mechanics: 55, 56, 109, 111-117, 132,207-208, 267-268, 280-289, 300-308, 312-314, 325-326
Electrodynamics: 3, 16-18, 43-45, 54-100, 109, 111, 143, 153-159, 161-162, 164-167, 210-218,231,238-241,256,267-268, 272-287, 308-310,319-321,325, 332-333,335-371,375-377, 379-381


Solutions to I.E. Irodov

Solutions by Abhay Kumar Singh . The book comes in two volumes and includes solutions of all problems of Irodov. The Solutions are explanatory and easy to understand. The solutions are very helpful in saving time and Understanding alternative approach to solving. 
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