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By: Andrew Disharoon, Nathan Robertson, Nigel Long, Brandon Huggins Duality Of light
[object Object],The idea that light is a wave motion Light will go in every direction from a light source  Light spreads throughout the medium Wave Theory of Light http://physics.tamuk.edu/~suson/html/4323/intro.html
[object Object],Wave Theory Allowed http://physics.tamuk.edu/~suson/html/4323/geometry.html
[object Object],Light is made of small particles Photons obey same laws of physics for masses Photons are so small that when two particle beams intersect they don’t rebound off of each other Particle Theory of Light http://galileo.phys.virginia.edu/classes/609.ral5q.fall04/LecturePDF/L20-LIGHTII.pdf
[object Object]
This explains the wave-particle duality
Stating that light acts like waves in propagation, interference, and diffraction
But like particles when reacting with matter
Because of Planck quantum mechanics was createdParticle Theory Continued… http://physics.tamuk.edu/~suson/html/4323/intro.html
Planck’s Constant ,[object Object]
Planck’s constant was the result of experimentation,[object Object]
As the front of the wave passes over an object, the wavelets following curve around the object.
This is why the edge of the shadow is not sharp and precise.Diffraction
Light Diffraction experiment Fuzzy outline of shadow Diffraction
[object Object],Diffraction
[object Object],Diffraction
What is the Photoelectric Effect? ,[object Object]
This is because they absorb the energies in the light.,[object Object]
The Photo Effect and The Wave Theory ,[object Object]
His theory was that light was a wave. ,[object Object]
To test this, Philip Lenard did an experiment with the Photoelectric Effect.
But he found that the amount of light did not do anything to the energy of the emitted electrons.,[object Object]
The Experiment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The photons could be interacting like particles in a wave.  Double Slit Experiment
Single Photon

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