Topic Details (Notes format)

Dual Nature of Matter and Radiation

Subject: General Science

Book: NCERT Physics Class 12

Particles exhibit both wave and particle properties.
- **Photoelectric Effect**:
- Einstein’s explanation.
- **de Broglie Hypothesis**:
- Matter waves.
- **Heisenberg’s Uncertainty Principle**:
- Limits of measurement.

**Possible Exam Questions:**
1. State Einstein’s photoelectric equation.
2. Derive de Broglie’s wavelength formula.
3. What is Heisenberg’s Uncertainty Principle?
4. How does the wave-particle duality explain quantum behavior?
5. Explain the experimental verification of de Broglie waves.

Practice Questions

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Which type of radiation has the shortest wavelength?

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What is the chemical formula of methane?

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Which scientist is known for the laws of motion?

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Which planet is known as the "Red Planet"?

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Which process in plants is responsible for the loss of water vapor?

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Which organelle is known as the "powerhouse of the cell"?

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