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Chapter 22 of 29
Syllabus

Dual Nature of Radiation and Matter — Syllabus

Telangana Open School (TOSS) · Class 12 · Physics

What Dual Nature of Radiation and Matter covers in Telangana Open School (TOSS) Class 12 Physics: 2 topics, for the 2026-27 session.

54 questions30 flashcards14 formulas & key relations5 concepts

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2 Topics · Telangana Open School (TOSS) Class 12 Physics · 2026-27

Topics in Dual Nature of Radiation and Matter

1

Photoelectric Effect

  • Photoelectric effect is the emission of electrons from a metal surface when light of sufficiently high frequency (above threshold frequency) is incident on it.
  • The emitted electrons are called photoelectrons.
  • Threshold frequency is the minimum frequency of incident light below which no photoelectrons are emitted, regardless of intensity.
2

Wave-Particle Duality and de Broglie Hypothesis

  • Louis de Broglie proposed that just as light has dual nature, matter also exhibits wave-like properties.
  • Matter waves are also called de Broglie waves.
  • The wavelength associated with a moving particle is given by λ = h/p.

Key Concepts

Central concept: Wave-Particle Duality

Photoelectric EffectPhotonde Broglie HypothesisExperimental ObservationsApplications and Implications

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Frequently Asked Questions

What are the important topics in Dual Nature of Radiation and Matter for Telangana Open School (TOSS) Class 12 Physics?
Key topics in Dual Nature of Radiation and Matter include Photoelectric Effect, Wave-Particle Duality and de Broglie Hypothesis. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Dual Nature of Radiation and Matter for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 54 practice questions on Dual Nature of Radiation and Matter. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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