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

Last Updated - July 12, 2019

GATE 2020 Physics (PH) Paper: IIT Delhi will release the answer key for GATE PH. Candidates may visit the official website ( in order to download the question paper and answer key. This year, GATE 2020 is scheduled for February 3 (tentative).

  • The results for the exam will be announced on March 16 at the GOAPS portal. Read more
  • The official answer keys are referred for evaluating GATE Scores.
  • Cut off marks for general category is expected to range in between 28 – 30. Check GATE Cut off

GATE PH Question Paper & Answer Key

2019Question PaperAnswer Key
2018Question PaperAnswer Key

Last year, 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.

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 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
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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