Modern physics practice.
Photons, atoms, nuclei and the ideas that began quantum physics. Every question has an explanation.
- 96questions
- 9topics
- 14exams
All modern physics topics.
Each topic opens a list of questions with explanations. Choose the exam you are preparing for.
Modern physics and semiconductors
21 questions across 1 exam
Dual nature of matter
17 questions across 5 exams
Radioactivity
12 questions across 3 exams
Atomic, Nuclear and Modern Physics
9 questions across 1 exam
Atomic, Nuclear and Quantum Physics
9 questions across 1 exam
Nuclear and astrophysics
8 questions across 1 exam
Modern physics and atomic structure
8 questions across 1 exam
Quantum and atomic physics
6 questions across 1 exam
Radioactivity and nuclear physics
6 questions across 1 exam
Try one now
Real questions, worked answers.
- Modern physics and semiconductors · JEE MainThe work function of a photosensitive metal is phi 0 = 2.0 eV. What is the threshold wavelength lambda 0 above which photoelectric emission CANNOT occ…See the answer and explanation →
- Dual nature of matter · NEET UGWhat is the energy of a photon of wavelength 310 nm? (use hc = 1240 eV nm, answer in eV)See the answer and explanation →
- Radioactivity · HKDSE (Hong Kong)A radioactive sample has a half-life of 10 days. Its mass of the radioactive nuclide is 160 g. How much remains after 30 days?See the answer and explanation →
Test yourself.
Timed mock tests
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- Are the modern physics questions free?
- Yes. Every question, explanation, mock test and flashcard deck is free, with no plans or paywalls.
- Which exams include modern physics?
- JEE Main, A-Level UK (AQA, Edexcel, OCR), Državna Matura (North Macedonia), ECAT Pakistan, HKDSE (Hong Kong), Kenya KCSE and more. Pick a topic above, then the exam you are preparing for.