GATE 2020 Physics (PH) Answer Key, Question Paper & Analysis

    Megha Rohilla Megha Rohilla
    University Data Specialist

    GATE 2020 Physics (PH) Paper: IIT Delhi has released the answer key for physics paper. Candidates may visit the official website ( in order to download the question paper and answer key. Candidates can also raise objections against  GATE 2020 Answer Key  from Feb 19 to 21, 2020 by making a payment of INR 500.  

    Candidates can check their  GATE 2020 Results  on March 16, 2020 by visiting the official website. The official answer keys are referred for evaluating GATE ScoresTill that time candidates can check their rank  Using GATE Rank Predictor.

    GATE 2020 Answer Key

    GATE 2020 Answer Key

    The answer keys for GATE 2020 physics paper:

    2020Question PaperAnswer Key

    GATE PH Question Paper & Answer Key

    2019Question PaperAnswer Key
    2018Question PaperAnswer Key

    Last year, the weightage of marks in the PH paper was given more to Thermodynamics & Statistical Physics (6Qs*2Mks) and Electromagnetic Theory (2Qs*1Mks | 5Qs*2Mks). Read on to know about the answer keys of Physics, steps to challenge the keys and paper analysis.

    Also Check IIT Madras Admission & Cut Off

    How to Download GATE 2020 Answer Key?

    1. Visit GOAPS portal and enter the issued enrolment ID and password. 
    2. Click on the "View Response" tab.
    3. A PDF will appear on screen with the details and answers to each question asked in GATE.
    4. Cross check your responses.
    5. Download the file for future processes.

    How to challenge GATE 2020 Answer Key?

    1. Log into the GATE Online Application Processing System.
    2. Go through the guidelines for challenging the answer keys and click on ‘Agree’ tab.
    3. Click on the “Contest Answer Key" tab and mail objections related to the answer.
    4. Make the required payment (INR 500/ question).

    Important Note(s)!

    • NRI candidates have to pay US $10 per question.
    • It is important to use the correct question number given in the question paper to challenge.
    • Attach a justified proof for challenging the answer key.

    GATE Paper Analysis

    GATE 2020 Physics (PH) Paper Analysis

    General Aptitude: This section is mandatory. General Aptitude (GA) section comprised of 10 questions. 5 questions out of these will carry 1 mark each, while the remaining 5 shall carry 2 marks each, for a total of 15 marks.

    Engineering Mathematics section: This section was also compulsory.

    Subject-specific section: This section comprised 70% of the exam paper.

    Overall Difficulty Level

    The difficulty level of the examination was between moderate and easy level. The total number of questions were not too much, thus running out of time was not a common problem among test takers. The problems were usually formula based, requiring little to no calculation.

    Types of Questions

    Multiple Choice Questions (MCQs)

    These questions are objective type with each having a set of four options, out of which one is the correct answer. They carry 1 or 2 marks each in all papers and sections.

    Numerical Answer Type (NAT)

    Similar to MCQs, each question carries either 1 or 2 marks. The answers to these questions are usually numbers which the candidate has to enter using a mouse and virtual keyboard. The answer can be either an integer or a number with decimals or even a decimal number. The candidate will not be given any choices for these questions.

    Marking Scheme

    • For 1-mark MCQs, 1/3 mark will be deducted for every incorrect attempt.
    • In case of 2-mark MCQs, the candidate will be penalized 2/3 mark for the wrong attempt
    • For questions that aren’t attempted, zero marks will be awarded.
    • There was no negative marking for numerical answer type (NAT) questions

    Read More GATE Paper Analysis 

    GATE 2020 Expected Cut off

    The expected cut off marks for GATE 2020 Physics examination are given below:

    Test Paper CodeQualifying MarksOrganizing Institute
    GenOBC (NCL)SC/ST/PwDIIT Delhi
    Physics (PH)403530

    Also Check GATE Cut Off

    GATE Physics (PH) Previous Year Paper Analysis

    The table below explains how much weightage each topic from GATE physics had for the previous years. GATE 2019 Physics aspirants are advised to go through the table, so as to understand the distribution of marks among the different units.

    UnitNumber of questions
    1 mark2 marks1 mark2 marks1 mark2 marks1 mark2 marks1 mark2 mark1 mark2 mark
    Mathematical Physics325222244323
    Classical Mechanics252633342452
    Electromagnetic Theory443234442542
    Quantum Mechanics273338642336
    Thermodynamics and Statistical Physics32334324-632
    Atomic and Molecular Physics22-441134224
    Solid State Physics332341224342
    Nuclear and Particle Physics422223324341
    General Aptitude555555555555

    About GATE Scores/ Marks

    GATE scores are considered by many PSUs for employment. Even direct recruitment to Group A level posts in Central government: Senior Field Officer (Tele), Senior Research Officer (Crypto) and Senior Research Officer (S&T) in Cabinet Secretariat, Government of India, is now being carried out on the basis of scores in the examination. Know more



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