Atomic And Nuclear Physics

5

Introduction to Quantum Mechanics

THIS CHAPTER COVERS…

• The photo-electric effect and concept of dual nature of light.
• The wave nature of particles quantified by de Broglie and its experimental evidence observed in Davisson-Germer experiment.
• Wave velocity and group velocity, the principle of uncertainty, the quantum wave function and Schrödinger's equation.
• The quantum mechanical case of a particle in a box and its tunneling.

5.1 INTRODUCTION

As light was thought to behave as particles and some times as waves, similarly electrons and other particles were considered to possess a wave-particle dual nature. The evidence for the existence of light as waves had already been established when the photoelectric effect gave firm evidence of the ...