2023-01-23T07:46:20+03:00[Europe/Moscow] en true <p><strong>Plane-polarized </strong>(or <strong>linearly polarized</strong>)<strong>&nbsp;light</strong></p>, <p>Aside from their electric fields being parallel, the _____ in plane-polarized light are also parallel. The plane of the _____ identifies the plane of polarization due to convention.</p>, <p>Unpolarized light has _____ orientation of its electric field vectors.</p>, <p><strong>Specific rotation</strong></p>, <p>The optical activity of a compound, due to the presence of _____, causes plane-polarized light to rotate clockwise or counterclockwise by a given number of degrees relative to its _____.</p>, <p>Amyloidosis is diagnosed by ...</p>, <p><strong>Gout</strong></p>, <p><strong>Pseudogout</strong></p>, <p><strong>Amyloidosis</strong></p>, <p>Gout and pseudogout are differentiated by their _____.</p>, <p>Monosodium urate appears _____ when the axis of the crystal is aligned with a polarizer.</p>, <p>calcium pyrophosphate appears _____ when the axis of the crystal is aligned with a polarizer.</p>, <p>MNEMONIC: Monosodium <strong>urate</strong> is _____, just like _____. </p>, <p><strong>Polarizers</strong></p>, <p>If one passes a beam of light through a polarizer, it will only let through that portion of the light _____.</p>, <p>When two polarizers are placed perpendicular to each other, ...</p>, <p><strong>Circular polarization</strong></p> flashcards
MCAT Physics and Math 8.4: Polarization

MCAT Physics and Math 8.4: Polarization

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  • Plane-polarized (or linearly polarized) light

    Plane-polarized (or linearly polarized)&nbsp;light is light in which the electric fields of all the waves are oriented in the same direction (that is, their electric field vectors are parallel).

    Plane-polarized (or linearly polarized) light is light in which the electric fields of all the waves are oriented in the same direction (that is, their electric field vectors are parallel).

  • Aside from their electric fields being parallel, the _____ in plane-polarized light are also parallel. The plane of the _____ identifies the plane of polarization due to convention.

    magnetic fields

    electric field

  • Unpolarized light has _____ orientation of its electric field vectors.

    random

  • Specific rotation

    The change in orientation of monochromatic plane-polarized light as the light passes through a sample of a chiral compound in solution.

  • The optical activity of a compound, due to the presence of _____, causes plane-polarized light to rotate clockwise or counterclockwise by a given number of degrees relative to its _____.

    chiral centers

    concentration

  • Amyloidosis is diagnosed by ...

    ... biopsy and staining the tissue with Congo red stain; a bright “apple green” color is seen under plane-polarized light.

  • Gout

    The precipitation of monosodium urate crystals into tissues throughout the body (fucking wherever, apparently)

  • Pseudogout

    The precipitation of calcium pyrophosphate crystals

  • Amyloidosis

    The buildup of misfolded amyloid proteins in the heart, kidneys, liver, or other organs.

  • Gout and pseudogout are differentiated by their _____.

    precipitate colors under polarized light

  • Monosodium urate appears _____ when the axis of the crystal is aligned with a polarizer.

    yellow

  • calcium pyrophosphate appears _____ when the axis of the crystal is aligned with a polarizer.

    blue

  • MNEMONIC: Monosodium urate is _____, just like _____.

    yellow

    urine

  • Polarizers

    There are filters called polarizers which allow only light with an electric field pointing in a particular direction to pass through.

  • If one passes a beam of light through a polarizer, it will only let through that portion of the light _____.

    parallel to the axis of the polarizer

  • When two polarizers are placed perpendicular to each other, ...

    ... no light gets through at all.

  • Circular polarization

    Circular polarization is a polarization state in which, at each point, the electromagnetic field of the wave has a constant magnitude and is rotating at a constant rate in a plane perpendicular to the direction of the wave. This results in a helical orientation in the propagating wave.

    Circular polarization is a polarization state in which, at each point, the electromagnetic field of the wave has a constant magnitude and is rotating at a constant rate in a plane perpendicular to the direction of the wave. This results in a helical orientation in the propagating wave.