CHEM 1A03 Chapter Notes - Chapter 8: Electromagnetic Radiation, Electrical Network, Work Function

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1A03
• Professor: Aadil Merali Juma

Document Summary

Electromagnetic radiation: a form of energy transmission in which electric and magnetic fields are. Chem 1a03 propagated as waves through empty space (a vacuum) or through a medium (such as glass) Si unit: m (meter: frequency nu; the number of crests or troughs that pass through a given point per unit of time. Si unit: hz (hertz: speed of wave c; product of and . Speed of light electromagnetic radiation has a constant speed in a vacuum; 2. 99792458 x 108 m s-1. Constructive interference the addition of waves. In phase where two waves crests, or two waves troughs coincide and create the highest crest or lowest trough. Out of phase where one waves crest and one waves trough coincide and the waves cancel each other out causing the wave to be flat. Destructive interference the cancelation of waves. Diffraction the dispersion of different wavelength components of a light beam through the interference produced by reflection from a grooved surface.