Physics 30: Chapter 13.5 Notes

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4 Terms

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Diffraction

the bending of waves around obstacles and the spreading out of waves beyond openings

  • will create points of destructive interference (nodes) and constructive interference (antinodes)

<p>the bending of waves around obstacles and the spreading out of waves beyond openings</p><ul><li><p>will create points of <strong>destructive interference (nodes)</strong> and <strong>constructive interference (antinodes)</strong></p></li></ul><p></p>
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Young’s Experiment

Diffraction and interference of light results in an interference pattern that is projected onto a screen.

  • Bright Fringes/Antinodal Lines = regions of constructive interference

  • Dark Fringes/Nodal Lines = regions of destructive interference

<p>Diffraction and interference of light results in an interference pattern that is projected onto a screen.</p><ul><li><p><strong>Bright Fringes/Antinodal Lines</strong> = regions of constructive interference</p></li><li><p><strong>Dark Fringes/Nodal Lines </strong>= regions of destructive interference</p></li></ul><p></p>
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The Interference Pattern

At the central antinode, both waves travel the same distance from the slits and arrive at the screen in phase.

<p>At the <strong>central antinode</strong>, both waves travel the same distance from the slits and arrive at the screen in phase.</p>
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Wavelength of Light Equation