Dual Nature of Radiation and Matter Class 12 Notes

The phenomenon of emission of photo electron from the surface of metal, when a light beam of suitable frequency is incident on it, is called photoelectric effect. The emitted electrons are called photo electrons and the current so produced is called photoelectric current. Know More about these in Dual Nature of Radiation and Matter Class 12 Notes.

The topics and sub-topics covered in Dual Nature of Radiation and Matter Class 12 Notes are:

11.1 Introduction

11.2 Electron Emission

11.3 Photoelectric Effect

11.3.1 Hertz’s observations

11.3.2 Hallwachs’ and Lenard’s observations

11.4 Experimental Study of Photoelectric Effect

11.4.1 Effect of intensity of light on photocurrent

11.4.2 Effect of potential on photoelectric current

11.4.3 Effect of frequency of incident radiation on stopping potential

11.5 Photoelectric Effect and Wave Theory of Light

11.6 Einstein’s Photoelectric Equation: Energy Quantum of Radiation

11.7 Particle Nature of Light: The Photon

11.8 Wave Nature of Matter

11.9 Davisson and Germer Experiment.​