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<center>Light (a form of Energy)</center> 
 
In the following discussion, we will be talking about light (a form of energy) but this understanding is also used for particles with similar properties. In our case, the electron (has almost no mass and moving at or near speed of light). 
 
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<th colspan=8 align=center>Light</th>
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<th>Light as a wave</th>
<th>Light as a particle (Max Planck)</th>
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<th>Properties: continuous and can't break it up into smaller parts</th>
<th> Properties: comes in discrete packages (he called "quanta", basic unit he called "photon", happy now Star Trek geeks)</th>
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<th>Analogy: Water (is light/energy) being squirted on You: 
Comes from a garden hose (as a single stream)</th>
<th>Analogy: Water (is light/energy) being squirted on You: 
Comes as a water balloon (know how much water coming at you by size of balloon)</th>
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<th>Equation: c = f * lamda 
c = speed of light (3.00E8 m/s or 3.00E8 m*Hz) 
f = frequency of light as Hz or 1/s where 1 1/s = 1 Hz 
lamda (symbol: backwards h, see in example calculations) is wavelength (m or nm)</th>
<th>Equation (called Planck Equation): E = h*f 
E - energy of light (in J) 
h - Planck's constant : 6.60E-34 <nowiki>J/Hz</nowiki> 
f - frequency of light as Hz or 1/s</th>
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<th>Detailed Explanation and Calculations (including videos) click, [[Light as a Wave]]</th>
<th>Detailed Explanation and Calculations (including videos) click, [[Light as a Particle]]</th>
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