Download - LIGHT
Transcript
Electromagnetic Waves
• Vacuum• Force fields
Photons
• Definition• Electrons• Energy levels• Electrons absorb energy
Photons (cont.)
• “Excited & unstable”• Photons released when electrons return• Photon energy 1. Energy level jump 2. Types of light
Properties of Light• Transverse wave/photons• Wavelength• Frequency/energy• Speed of light 1. c = 300 million m/s 2. Medium 3. Types of light 4. Calculation of speed of light???
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