In short: FLN Tutors gives modern physics help and tutoring for A-Level, IB, CBSE, JEE and university students. Tutors explain the photoelectric effect, wave–particle duality, atomic models, the Schrödinger equation, special relativity and nuclear physics step by step, and work through textbook problems with every constant and unit shown. Matched to a verified specialist who knows your course, your university's marking criteria, and your deadline.
Topics we cover
FLN physics tutors help students from GCSE to university with mechanics, electricity, waves, fields, quantum phenomena and modern physics. Sessions focus on understanding the physics behind each equation and on calculation technique, using questions from your own course or exam board.
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Modern physics is the branch of physics developed from the early twentieth century to explain what classical physics could not: the behaviour of objects moving close to the speed of light and of matter at atomic and subatomic scales. Its two foundations are Einstein's special relativity and quantum mechanics, which lead on to atomic, nuclear, particle and solid-state physics.
Modern physics help at FLN Tutors means one-to-one support from a physics specialist who works through derivations and problems with you, explaining the concepts and the maths behind each step.
Modern physics help is one-to-one support from a physics tutor who explains quantum mechanics, special relativity, atomic and nuclear physics, and works through derivations and textbook problems step by step. At FLN Tutors it covers live tutoring, worked homework solutions and assignment guidance for university, CBSE Class 12, JEE and NEET students.
| What you need | Best option | What you get |
|---|---|---|
| Regular lessons on a modern physics module | Live one-to-one tutoring | A tutor explains the method on a shared whiteboard at your pace |
| Textbook problems you cannot finish | Homework help | Step-by-step worked solutions you can learn from |
| A graded problem set or physics assignment | Assignment help | Tutor guidance, feedback and model workings within your university's rules |
Most modern physics modules cover the same core topics: blackbody radiation and the photoelectric effect, wave–particle duality, the Bohr model, the Schrödinger equation and simple quantum systems, special relativity, atomic structure, nuclear physics and radioactivity, and an introduction to particle physics. Tutors help with both the concepts and the calculations.
| Topic | Key ideas and equations |
|---|---|
| Special relativity | Time dilation, length contraction, Lorentz transformations, E = mc² |
| Photoelectric effect | Photon energy E = hf, work function, stopping potential |
| Wave-particle duality | de Broglie wavelength λ = h/p, electron diffraction |
| Quantum mechanics | Schrödinger equation, wavefunctions, operators, uncertainty principle |
| Atomic physics | Bohr model, hydrogen atom, energy levels, spectra |
| Nuclear physics | Binding energy, radioactive decay, half-life, fission and fusion |
| Solid-state physics | Band theory, semiconductors, conductivity |
This map lists the core modern physics topics, the point where students most often get stuck, and how a tutor helps you past it.
| Topic | Where students get stuck | How a tutor helps |
|---|---|---|
| Photoelectric effect | Linking photon energy to work function | Energy diagrams before equations |
| Wave–particle duality | de Broglie wavelength calculations | Unit checks with h, m and v |
| Atomic models | Energy levels and spectral lines | Level diagrams with transitions |
| Schrödinger equation | Setting up boundary conditions | Particle in a box solved step by step |
| Uncertainty principle | Order-of-magnitude estimates | Worked estimates with physical meaning |
| Special relativity | Time dilation and length contraction | Identify proper time and proper length first |
| Nuclear physics | Binding energy and decay | Mass defect and half-life worked examples |
| Semiconductors (school level) | Band ideas and diodes | Diagrams linked to I–V curves |
Quantum mechanics homework help focuses on setting up and solving the Schrödinger equation for standard systems and interpreting the results physically. Tutors show each step of the maths and explain what the wavefunction and probabilities mean. Standard systems include the infinite well, the harmonic oscillator and the hydrogen atom.
Light of frequency 1.0 × 10¹⁵ Hz falls on a metal with a work function of 2.3 eV. Find the maximum kinetic energy of the emitted electrons (h = 6.63 × 10⁻³⁴ J s, 1 eV = 1.60 × 10⁻¹⁹ J).
| Step | Working | Result |
|---|---|---|
| Photon energy | E = hf = 6.63 × 10⁻³⁴ × 1.0 × 10¹⁵ | 6.63 × 10⁻¹⁹ J |
| Convert to eV | 6.63 × 10⁻¹⁹ ÷ 1.60 × 10⁻¹⁹ | ≈ 4.14 eV |
| Maximum kinetic energy | KEmax = hf − φ = 4.14 − 2.3 | ≈ 1.84 eV |
If the photon energy were below 2.3 eV, no electrons would be emitted, however bright the light: the key evidence for photons.
Two more standard calculations.
| Question | Working | Answer |
|---|---|---|
| An electron (m = 9.11 × 10⁻³¹ kg) moves at 2.0 × 10⁶ m/s. Find its de Broglie wavelength. | λ = h ÷ (mv) = 6.63 × 10⁻³⁴ ÷ (9.11 × 10⁻³¹ × 2.0 × 10⁶) | ≈ 3.6 × 10⁻¹⁰ m, similar to atomic spacing |
| A spacecraft travels at 0.8c. A clock on board records 10 years. How long passes on Earth? | γ = 1 ÷ √(1 − 0.8²) = 1 ÷ 0.6 ≈ 1.67; Δt = γΔt₀ | ≈ 16.7 years |
The electron's wavelength is close to the spacing of atoms in a crystal, which is why electron diffraction works.
Special relativity help starts from Einstein's two postulates and builds up to the Lorentz transformations, so you understand why time dilation and length contraction happen rather than just applying formulas. Tutors use spacetime diagrams and worked problems. Typical problems cover muon decay, the twin paradox and relativistic momentum.
In CBSE Class 12, modern physics covers dual nature of radiation and matter, atoms, nuclei and semiconductor electronics, and these chapters carry significant weight in JEE Main and NEET. Tutors teach the NCERT concepts, the formula sheet and how to solve previous years' questions quickly.
See our CBSE Class 12 Physics and ISC Class 12 Physics courses.
Tutors match your level, syllabus and exam board, from school to PhD.
| Level | What you study | Matching help |
|---|---|---|
| A-Level and IB | Particles and radiation, quantum phenomena, nuclear physics; IB Physics topics on quantum and nuclear physics | A-Level AQA Physics, IB Physics HL |
| India (CBSE Class 12, JEE, NEET) | Dual nature of radiation and matter, atoms, nuclei, semiconductor electronics | CBSE Class 12 Physics |
| Undergraduate | Modern physics, introductory quantum mechanics, special relativity, atomic and nuclear physics | Engineering Physics, homework help |
| Master's and PhD | Advanced quantum mechanics, particle and condensed matter physics, thesis work | Live tutoring, assignment help and dissertation help |
Related: Physics, Mathematics and Linear Algebra.
Many university courses use textbooks such as University Physics with Modern Physics (Young and Freedman), Serway's Modern Physics, Krane or Beiser. Tutors work through the end-of-chapter problems you're stuck on, explaining the method so you can solve the rest yourself.
For first-year physics more broadly, see Engineering Physics and the AQA A-Level Physics course.
Most lost marks come from unit slips and confusing which frame or quantity is which.
| Mark-loser | What to do instead |
|---|---|
| Mixing joules and electronvolts | Convert with 1 eV = 1.60 × 10⁻¹⁹ J before combining |
| Using frequency where wavelength is needed | Use E = hc ÷ λ when wavelength is given |
| Swapping proper time and dilated time | Proper time is measured in the frame where events happen at one place |
| Forgetting boundary conditions | State them before solving the Schrödinger equation |
| Mass defect in the wrong units | Use atomic mass units with 931.5 MeV per u, or kilograms with E = mc² |
| Too many significant figures | Match the data given |
Modern physics is assessed in several formats, and each one is marked on different things. Tutors help you understand the brief and the marking criteria before you start.
| Assessment | What markers look for |
|---|---|
| Exams | Correct use of equations and constants, units and clear reasoning |
| Problem sets | Complete derivations and calculations with physical interpretation |
| Lab reports (for example photoelectric or electron diffraction experiments) | Accurate data, uncertainty analysis and comparison with theory |
| Essays and presentations | Clear explanation of key experiments and their significance |
| Projects | A focused question, sound method and clear write-up |
Modern physics students use calculation, simulation and writing tools.
| Tool | What it is used for |
|---|---|
| Scientific calculator | Standard form and constants |
| Python or MATLAB | Solving and plotting wavefunctions numerically |
| PhET simulations | Photoelectric effect and quantum ideas interactively |
| Excel | Plotting experimental data and gradients |
| LaTeX | Writing up university problem sets and reports |
The price of modern physics help depends on the level, the number of problems and your deadline. A short A-Level photoelectric question set costs less than a university quantum mechanics problem sheet. You always see the price first: a fixed quote for homework and assignment guidance, or the tutor's hourly rate for live lessons, with no contract and no minimum number of sessions. Refunds follow our refund policy.
Modern physics is taught to similar core ideas worldwide, but grading, referencing and course structure differ. FLN tutors work from your own syllabus and handbook and schedule lessons in your time zone. Always follow your module handbook for referencing.
| Country | Where modern physics is studied | Grading | Referencing usually used |
|---|---|---|---|
| United Kingdom | A-Level Physics, BSc and MPhys modern physics modules | GCSE 9–1, A-level A*–E; degrees First, 2:1, 2:2, Third | Harvard or a journal style |
| United States | AP Physics 2 topics, college modern physics | Letter grades A–F and a 4.0 GPA scale | APA, CSE or ACS |
| Australia | Senior secondary physics, university modern physics | HD, D, C, P at university; ATAR for school leavers | Harvard or APA |
| Canada | Grade 12 physics, university modern physics | Letter grades or percentages; GPA scales vary by province and university | APA or CSE |
| India | CBSE Class 12, JEE and NEET, BSc physics | Board exam percentages; university CGPA, often on a 10-point scale | As your university specifies |
Students in Ireland, the Gulf, Europe, Africa and Asia can book the same help, with lessons in their own time zone.
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Modern Physics and related specialists
Every expert is degree-verified and quality-tested before joining.
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I am an experienced physics educator with 10+ years of teaching and problem-solving experience, specializing in Electrostatics, Electromagnetism, Mechanics, Thermodynamics, and Energy Physics. I help students understand complex concepts, solve numerical problems step by step,…
Student reviews
Used FLN Tutors? Be one of the first to share how it went, in writing or in a short video.
Usually special relativity, the photoelectric effect, wave-particle duality, quantum mechanics, atomic and nuclear physics, and sometimes particle and solid-state physics.
It can feel abstract because it challenges everyday intuition, and the maths is demanding. Working through concepts and problems step by step with a tutor makes it much more manageable.
Yes. Tutors explain the time-dependent and time-independent Schrödinger equation and solve it for standard systems such as the particle in a box and the harmonic oscillator.
It's the emission of electrons from a metal when light above a threshold frequency shines on it. It showed that light comes in photons with energy E = hf, a key step in quantum theory.
Divide Planck's constant by the particle's momentum: λ = h/p. For an electron accelerated through a voltage, you first find its momentum from its kinetic energy.
Yes. Tutors cover dual nature of matter, atoms, nuclei and semiconductors with JEE and NEET style questions and quick solving techniques.
Yes. That includes binding energy per nucleon, mass defect, decay equations, half-life and activity calculations.
Yes. Tutors work from your own textbook and lecture notes, such as Young and Freedman, Serway, Krane or Beiser.
Yes. Tutors start from the two postulates and use spacetime diagrams and real examples, such as muon decay, before moving to the formulas.
Yes. Tutors cover the A-Level particles and radiation and quantum phenomena topics, including photon models and energy levels.
Use KEmax = hf − φ, where hf is the photon energy and φ the work function, with both in the same units (joules or electronvolts).
Use Δt = γΔt₀, where γ = 1 ÷ √(1 − v²/c²) and Δt₀ is the proper time measured in the moving frame.
Binding energy is the energy needed to split a nucleus into its separate protons and neutrons. It comes from the mass defect, using E = mc².
It states that position and momentum cannot both be known exactly: Δx × Δp ≥ ħ ÷ 2. The same applies to some other pairs of quantities.
Apply the boundary conditions that the wavefunction is zero at the walls, which gives allowed wavelengths and energies Eₙ = n²h² ÷ (8mL²).
Electrons in atoms can only have certain energies. Moving between levels absorbs or emits a photon with energy equal to the difference.
Yes. Tutors help you analyse data from experiments such as the photoelectric effect or electron diffraction and write a clear discussion.
Often, yes, for short problem sets, depending on tutor availability.
Yes. Tutoring, worked examples and feedback are a normal part of learning. You should use the explanations to understand the method and submit your own work in line with your school's or university's academic integrity rules. See our academic integrity policy.
Yes. Your files and details are used only to help you and are not shared with your school or university. See our privacy policy.
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