Chapter 14 of 16
Syllabus
Dual Nature of Radiation and Matter — Syllabus
Maharashtra Board · Class 12 · Physics
What Dual Nature of Radiation and Matter covers in Maharashtra Board Class 12 Physics: 4 topics, for the 2026-27 session.
44 questions24 flashcards5 concepts
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4 Topics · Maharashtra Board Class 12 Physics · 2026-27
Topics in Dual Nature of Radiation and Matter
1
Electromagnetic Radiation and Wave-Particle Duality
- Electromagnetic radiation consists of mutually perpendicular oscillating electric and magnetic fields
- Classical wave theory explains reflection, refraction, interference, diffraction, and polarization
- Black body radiation spectrum cannot be explained by wave theory alone
2
Photoelectric Effect
- Discovered by Heinrich Hertz in 1887
- Emission of electrons when light of suitable frequency falls on metal surface
- Threshold frequency ν₀ exists below which no emission occurs
3
Experimental Setup and Observations
- Evacuated glass tube with quartz window for UV transmission
- Photosensitive emitter (cathode) and collector (anode)
- Variable voltage source for accelerating/retarding potential
4
De Broglie Hypothesis and Matter Waves
- Proposed by Louis de Broglie in 1924
- If radiation has wave-particle duality, matter should too
- Every moving particle has associated matter waves
Key Concepts
The emission of electrons fromEinstein proposed that electromagnetic radiation consistsThe minimum energy required to removeEvery moving particle has an associatedBoth electromagnetic radiation and matter exhibit
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What are the important topics in Dual Nature of Radiation and Matter for Maharashtra Board Class 12 Physics?
Key topics in Dual Nature of Radiation and Matter include Electromagnetic Radiation and Wave-Particle Duality, Photoelectric Effect, Experimental Setup and Observations, De Broglie Hypothesis and Matter Waves. Study these first, then practise questions on each for the Maharashtra Board Class 12 board exam.
How should I revise Dual Nature of Radiation and Matter for the Maharashtra Board Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Dual Nature of Radiation and Matter. Revise definitions regularly and use flashcards for quick recall before the exam.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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