Light diffraction and interference are investigated as we observe light going through single and double slits. We then apply these ideas as we learn about holograms.
Unit 6 Segment H: Light: Diffraction and Interference Light diffraction and interference are investigated as we observe light going through single and double slits. We then apply these ideas as we learn about holograms.Premiere Date: July 31, 2018 | Runtime: 00:07:28
-Define the terms diffraction and interference.
-Explain how double slit diffraction creates interference patterns within light waves.
-Describe how amplitude is affected by light waves interfering with one another constructively and destructively.
-Compare and contrast the properties of maxima and minima seen with single and double slits.
-Describe what happens to the distance between maxima when different wavelengths of light go through single and double slits.
-Explore real world applications of light interference and diffraction.
constructive interference - when two waves interact in phase with one another, that is, their peaks and their troughs are in sync; it increases the amplitude of the combined wave.
destructive interference - when the peak of one wave overlaps with the trough of another wave, diminishing the amplitude of the combined wave.
diffraction - the bending of a wave around a barrier.
Huygens’ principle - every point on a wave behaves as a separate wave or wavelet.
interference - the overlapping of waves forming a resultant wave of increased or decreased amplitude.
maxima - areas of constructive interference as two waves overlap one another; seen as bright spots on the screen.
minima - areas of destructive interference as two waves overlap one another; seen as dark spots on the screen.
wave-particle duality - the idea that light behaves like a particle and like a wave.
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