How to build up the Concept for Solving problems of NEET ???
First of all, you need to understand the whole chapter very carefully. Don't leave any point o many concepts untouched and can read. Make a list of all the formulas with concepts &Short tricks before start solving the problems. Whenever you start solving problems, you may face how to Start the problem on approaching the problem. Here let's take one example.
In a particular experiment, the time period of a simple pendulum is found to be dependent on the length of the pendulum & the acceleration due to gravity. How to find the exact dependence of the time period on length & acclamation due to gravity(g)??
Answers: The problem contains no mathematical formula or number that can be solved. Here students can use two techniques, first by memory; everyone knows T= 2πl root(l/ g). But those who do not know this can approach dimensional analysis, where T is proportional to the power of length I & gravity gd NOW, by dim. analysis. It is pretty easy to solve. Most of the problems like finding the dimension of G or, Epsilon nought can easily be found out. I need not remember much.