What this chapter is about
Light was long considered purely wave-like, explaining interference and diffraction. Yet experiments in the late 1800s showed light behaves as particles (photons) in certain situations. Similarly, electrons were thought to be purely particles, yet de Broglie proposed they have wave properties. This particle-wave duality is fundamental to quantum mechanics. Understanding this requires knowledge of photons, photoelectric effect, X-rays, and matter waves.
---
Learning objectives
- 1Explain photons, Photoelectric Effect, Matter Waves, and Quantum Mechanics
- 2Explain pHOTON CONCEPT AND PLANCK'S QUANTUM HYPOTHESIS
- 3Explain planck's Quantum Hypothesis
- 4Describe the photon Properties
- 5Explain pHOTOELECTRIC EFFECT
- 6Explain observation and Paradox
Your learning path
Key terms
ApplicationsPhotonX-raysLimitationsStopping potentialThreshold frequencyPhotoelectric effectCharacteristic X-raysde Broglie wavelengthWave-particle dualitySeriesProcessPrincipleSuccessesBoth haveProperties
Connected chapters
27Concepts
25Formulae
11Minutes