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Diffraction

by Jared Rovny
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    About the Lecture

    The lecture Diffraction by Jared Rovny is from the course Light: Electromagnetic Radiation.


    Included Quiz Questions

    1. The wavelength of the light is much smaller than the width of the doorway
    2. The light must go exactly to the edge of the doorway for diffraction to occur
    3. Light can only diffract through a metal object
    4. Light will only diffract or reflect from reflective objects
    5. Diffraction requires many openings to occur
    1. Splitting light into its component wavelengths
    2. Focusing light into a stronger beam
    3. Raising light to a higher frequency
    4. Dropping light to a lower frequency
    5. Increasing the wavelength of light
    1. X-rays are of comparable wavelength to the distance between molecules, so that the diffraction patterns show the structure of the material
    2. X-rays are much larger than the distance between molecules so that they reflect off the molecules in a way that shows the structure of those molecules
    3. X-rays are very energetic so that the material absorbs and emits them at lower frequencies which show the structure of the material
    4. X-rays move slower through dense material so that the difference in velocities reveals the structure of the material
    5. X-rays can move unchanged through dense material so that the shadow left on the other side of the material reveals the molecular structure
    1. Each point along the path of light can be seen as a source of spherical waves of light
    2. When light arrives at a corner, attraction between the corner and the light pulls the light towards the corner
    3. When light arrives at an opening, it acts as a particle and bounces off each side of the opening
    4. When large wavelengths hit a small opening, only part of the wave can go through, causing it to bend towards the longer side of the wave
    5. When small wavelengths reach a large opening, they bounce off of each other

    Author of lecture Diffraction

     Jared Rovny

    Jared Rovny


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