Electromagnetic Radiation (EMR)
by Elma Dobric
1. Wave vs Particle
1.1. Wave: As a wave, electromagnetic radiation is characterized by velocity, wavelength, and frequency. The velocity is the speed of light.
1.2. Particle: As a particle, electromagnetic radiation is characterized as a photon. Each has an energy related to the frequency of the wave. This is given by Plank's relation, E=hv
1.2.1. E=Energy of the photon
1.2.2. h=Planck's constat (6.626x10^-34 J*s)
1.2.3. v=frequency of the wave
2. Interaction with Matter
2.1. Reflection
2.2. Refraction
2.3. Dispersion
2.4. Diffraction
2.5. Interference
2.6. Polarization
2.7. Absorption
2.8. Scattering
2.9. Transparent, translucent, and opaque
2.10. Fluorescence
2.11. Phosphorescene
2.12. Color
2.12.1. Pigment Mixing
2.12.2. Light Mixing