INPhO (Indian National Physics Olympiad)

Every year in June and July, the Indian Association of Physics Teachers (IAPT) organizes the Indian National Physics Olympiad (INPhO). Students in secondary school who wish to broaden their grasp of physics to include a global perspective are the target audience. The IPhO is a competitive exam that promotes global cooperation and serves as a benchmark for pre-university Physics students. Improving the standard of physics education across the nation is the main objective of the INPhO test. InPhO is scheduled to begin in July.(TENTATIVE)

This post will cover a lot of topics regarding INPhO exam Pattern, including the exam format, syllabus, registration, and results.

Exam Pattern for INPhO

Details about the INPhO Exam Pattern are given here. The stages of the INPhO exam are as follows:

• There are two sections to the INPhO test.
• In the first level, you get an hour to complete 50 multiple-choice questions.
• Students are given a rough sheet for initial work. The second level consists of five or six questions in all.
• It will take an hour to respond to the query.
• The pupils are expected to write their answers on the sheets that were distributed throughout the next hour. To answer every question in both parts of the exam, a strong foundation in physics is required prior to taking the INPhO. It is crucial to have a firm grasp of the fundamental ideas and formulas pertaining to INPhO.

Part 1 (180 marks)	Part 2 (60 marks)
50 multiple-choice questions (MCQs)	5 or 6 short answer questions with all the questions carrying equal marks.
40 questions (MCQs)
10 questions (MCQs)

INPhO Eligibility Criteria

The INPhO test requires the completion of the following prerequisites. Candidates are recommended to confirm that they meet all INPhO eligibility requirements before submitting an application for the test.

• Applicants must be able to present an Indian passport and must not have begun their studies at a university or other institution prior to June 1st.
• The applicant is not allowed to take part in NSEJS.
• The applicant must be an Indian citizen, have been enrolled in school there since November 30, 2018, and not have passed the 12th board exam before then.
• The candidate’s birthdate (including both days) should fall between July and June.

INPhO Olympiad Syllabus

The Syllabus of INPhO is given below

1. Mechanics

• Establishment of the Kinematics of a point mass.
• Newton’s Laws and Inertial systems.
• Closed and Open systems, Momentum and Energy, Power work.
• Conservation of Energy, Impulse, Conservation of Linear Momentum.
• Elastic forces, The law of Gravitation, Frictional Forces, Potential Energy, Work in a Gravitational Field, Centripetal Acceleration, Kepler’s Laws.

2. Mechanics of Rigid Bodies

• Statics, Torque, Centre of Mass.
• The motion of rigid bodies, Translation, Angular velocity, Rotation, Angular Acceleration, and Conservation of Angular Momentum.
• Identification of motion of a rigid body around the fixed axis, Kinetic energy of a rotating body, Moment of inertia, External and Internal Forces.
• Accelerated reference systems and inertial forces.

3. Hydromechanics.

No particular questions will be asked from this topic, but students should know the elementary concepts of pressure, the continuity law, and buoyancy.

4. Thermodynamics and Molecular Physics

• Internal energy, First and Second laws of Thermodynamics, Work and Heat.
• Model of a perfect gas, Pressure and molecular kinetic energy, Formulation of state of a perfect gas, Avogadro’s number, Absolute Temperature.
• The accomplishment of work by an expanding gas limited to isothermal and adiabatic processes.
• The Carnot cycle, Reversible and Irreversible processes, Thermodynamics Efficiency, Entropy (statistical approach), and Boltzmann factor.

5. Oscillations and waves

• Harmonic oscillations and the equation of Harmonic Oscillation.
• Harmonic waves, Transverse and Longitudinal Waves, Propagation of waves, Linear polarization, Sound waves, The Classical Doppler effect.
• Superposition of harmonic waves, Interference, Coherent waves, Standing waves, Beats.

6. Electric Charge and Electric Field

• Conservation of charge, Coulomb’s law.
• Electric field, Gauss’ Law, Potential.
• Dielectric constant and energy density of the electric field, Capacitors, and Capacitance, etc.

7. Current and Magnetic field

• Ohm’s law, Internal resistance of source, Kirchhoff’s laws, Joule’s law, Work Current Resistance, Work and power of direct and alternating currents.
• The magnetic field of a current, Lorentz force, Current in a magnetic field.
• Ampere’s law
• Law of electromagnetic induction, Lenz’s law, Magnetic Flux, Self-induction, Energy Density of Magnetic field, Inductance, Permeability.
• Voltage and Current (series and parallel) Resonances, Resistors, Inductors and Capacitors in AC-circuits, Alternating current.

8. Electromagnetic Waves

• Generation by feedback and resonance, Frequency of Oscillations, Oscillatory circuit.
• Wave optics, Diffraction grating, Diffraction from one and two slits, Bragg reflection, Resolving power of a grating.
• Line spectra of gases, and Dispersion and Diffraction spectra
• Electromagnetic waves as transverse waves, Polarizers, Polarization by reflection.
• Resolving Power of Imaging Systems.
• Black body and Stefan-Boltzmann’s law

9. Quantum Physics

• The impulse of the Photon, and Photoelectric effect and energy.
• De Broglie Wavelength and Heisenberg’s uncertainty principle

10. Relativity

• Principle of Relativity, Relativistic Doppler effect, Addition of velocities.
• Energy, Momentum, Relation between energy and mass, Conservation of energy and Momentum, Relativistic identification of motion
• Simple applications of the Bragg equation.
• Energy levels of atoms and molecules (qualitatively), Absorption, Spectrum of hydrogen-like atoms emission.
• Alpha- Beta-Gamma-Decomposition, half-life, and exponential decay, Absorption of radiation, Components of nuclei, Nuclear reactions, Mass defect, Energy levels of nuclei (qualitatively).

Best Guide Books for INPhO Exam Preparation

Below is a list of reference books (INPhO and IPhO) to help you prepare for the Physics Olympiad. Remember that many of the titles below have English translations available, although they are in other languages.

• 32nd International Physics Olympiad– Proceedings, Sinan Kaan Yerti and Ibrahım Gunal
• Proceedings of the 33rd International Physics Olympiad
• Proceedings of the 34th International Physics Olympiad
• SophiaYnagandMing−JueyLin−JessicaChang
• SophiaYnagandMing−JueyLin−JessicaChang
• Proceedings of 35th International Physics Olympiad
• Proceedings of 36th International Physics Olympiad
• International Physics Competitions and First Step to Nobel Prize in Physics- Waldemar Gorzkowski
• Medjunarodni Olimpijadi po Fizika, Viktor Urumov
• Also refer to practice more then 10,000 questions from School Connect Olympiad.

INPhO Result

The HBCSE’s official website, secure.hbcse.tifr.res.in/ino/, will host the online publication of the INPhO results. By providing details like their date of birth, verification code, and NSE roll number, candidates can view their results.

Read more

INPhO Exam Registration

INPhO Exam Date

Frequently Asked Questions on INPhO: The Indian National Physics Olympiad  

Q1 What are the stages of INPhO?

Stage I: National Standard Examination in Physics (NSEP) – The full title of NSEP is National Standard Examination in Physics.
Stage 2: INPhO (Indian National Physics Olympiad) – The full name of INPhO is Indian National Physics Olympiad.
Stage 3: Orientation cum Selection Camp (OCSC) – In Physics, the full term of OCSC is Orientation cum Selection Camp.
Stage 4: PDT stands for Pre-departure Training Camp for IPhO in its complete form.
Stage5: IPhO (International Physics Olympiad) – IPhO stands for Participation in International Physics Olympiad.

Q2 When will the Indian National Physics Olympiad results be released?

The COVID-19 pandemic caused the examination to be postponed, hence the INPhO cut off has not been announced. In response to your question, the INPhO cut off is established by modifications in evaluation marks. Using web scrapers, we may obtain the exam scores of each candidate who took the INPhO.

Q3 How can I verify the INPhO outcome?

The official website of the HBCSE will host the results of the INPhO Exam. By providing details such their NSE Roll Number, DOB, and verification code, candidates can view their results.

Q4 How do you become accepted into INPhO?

Students who meet the appropriate qualifying requirements are eligible to participate in the NSEP. The student’s score needs to be higher than half of the top ten results. The lowest possible score (MAS) is this one. An applicant will be eligible for INPhO if they receive a score of greater than 80% on the average shown above.

Q5 How much does it cost to enroll in INPhO?

At the NSE registration site, students who want to sign up for the INPhO test must pay an enrollment fee of Rs. 150. There is an enrollment fee for each topic for each student.

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