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Quantum Mechanics - Overview

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Quantum mechanics ( QM ; also known as quantum physics , quantum theory , the wave mechanical model , or matrix mechanics ), including quantum field theory , is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles . [2] Classical physics , the physics existing before quantum mechanics, describes nature at ordinary (macroscopic) scale. Most theories in classical physics can be derived from quantum mechanics as an approximation valid at large (macroscopic) scale. [3] Quantum mechanics differs from classical physics in that energy , momentum , angular momentum and other quantities of a bound system are restricted to discrete values ( quantization ); objects have characteristics of both particles and waves ( wave-particle duality ); and there are limits to the precision with which quantities can be measured ( uncertainty principle ). [note 1] Quantum mechanics gradually arose from theories to expla...
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What are some ways to score the best on the JEE exam?

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Let me start by providing you a few  General Tips. Study Plan : It is extremely essential that the student formulates a study plan which improves and covers all areas of his/her weaknesses and also play a role in polishing his/her strong points. We would later be covering the priority-based topics for JEE. Time-Management : Time-Management is the fundament recipe for clearing JEE or anything in life. The student needs to adopt a proper time-management method in which he doesn’t even miss out on his daily recreational activities and also his academics. They need to take proper time from their schedule for self-study and not just allot all the time to coaching classes and college. Practice, Practise, Practise  !!- Practice is the key to clearing JEE. More questions you’re exposed the better. IIT-JEE questions are never straight-forward, they are extremely conceptual and the students need extreme expertise for solving the problem or else he/she would suffer ...
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A STRANGE STORY OF AN IITian...

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You will find it interesting. It will be quite motivating for many JEE aspirants. JEE aspirants can relate to my experiences. Some might find it difficult to believe this story. In this story you will come to know how a child who was considered average by some people reached AIR 247 in JEE Advanced. My Background : My father is a shopkeeper and mother is a housewife. I had never been a topper in my class. In ninth class (CBSE) I got only 8.2 CGPA. Everyone considered me as an average student but some teachers and my father believed that I had something special in me. In tenth class I got 9.6 CGPA and stood 2nd in my class. I knew that there were many students across the country who got 10 CGPA. But still it was a very big achievement for me and my family. Street Engineers : Following some commercials, I joined an Institute in June. From the beginning only, I did not have any good mentor. All I had were street engineers (average seniors) who did not get a job. I took advice ...
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What is JEE Advanced ?

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The JEE Advanced is structured differently than the main exam. The advanced exam covers the same three topics: Physics, Chemistry, and Mathematics. However, unlike the main exam, the advanced exam is divided intTo two three-hour long papers, each divided into three sections (one for each topic). Although the Structure for examinations is not fixed students can refer to the patterns of previous year question paper to have a vague idea of how the JEE Advanced Examinations are conducted. As a matter of fact, JEE Advanced Papers are Full of Surprises! So, brace yourselves because the journey wouldn't be cakewalk that's for sure. So, now referring to the previous year JEE ADVANCED Paper, There are two 3-Hour Papers. Each Paper having three sections for each subject and further divided to have more sub-sections for having different types of questions. Considering each sub-section of a section. There are usually three sub-sections. · The first sub-section usually conta...
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