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  • Strategy For Physics Optional – For IAS Mains Examination.
    Posted on January 18th, 2021 in Main Exam, Physics, Strategy
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    Strategy For Physics Optional – For IAS Mains Examination.

    One of the science related subjects in the list of optional subjects in UPSC Exam is Physics. This subject is not as popular as Geography or Public Administration.Continue Reading Strategy For Physics Optional – For IAS Mains Examination.

    It can be taken up by those with a science or engineering background in college.Though it is considered one of the best optional subjects for IAS for engineering students, others who may choose this subject are:

    • Candidates with a Physics major in their graduation.
    • Candidates with a background in STEM (Science, Technology, Engineering and Mathematics).
    Physics for UPSC: Tips for Preparation
    • It is very important to be thorough with concepts in the UPSC Physics syllabus. Higher-order problem-solving skills should be developed to score good marks.
    • One of the important parts of your answers is derivations. Assess the number of marks allocated to a question and decide if you would derive the whole equation or just give the equation. If it is a 20-marks question, you should derive the relevant equation. Analyse the space and time constraints and decide. Derivations can be done in multiple ways and hence require practice.
    • For Paper I, practice numerical problems. Multiple methods to solve the same question should be studied. Paper-II has more theoretical questions, so developing a good knowledge base in classical and modern physics is a must. Practice using previous years’ UPSC physics optional question papers.
    • You must know the definitions of terms and various equations related to a concept. If a question about a particular phenomenon is asked, you must explain the underlying theory as well as the mathematical solution.
    • You should make IAS physics notes for every chapter. This will make your revision easier.
    Important Topics for Physics Optional

    Here are a few important topics to study for UPSC Physics Paper I:

    Section A:

    • Classical Mechanics
    • Special Relativity
    • Wave Motion
    • Geometric Optics
    • Physical Optics

    Section B:

    • Electricity and Magnetism,
    • Electromagnetic Theory
    • Black Body Radiation
    • Thermal Physics
    • Statistical Physics

    Physics Paper II

    • Quantum physics
    • Modern physics
    • Electronics


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