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MCAT Physics - Optics

Jen Molte 10 preguntas

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Preguntas del test (10)

  1. 1Light is propagating is a direction directly away from you, with an electric field that appears to be rotating in its orientation in the counterclockwise direction. The polarization state of such a wave is:
    1. ARandomly polarized.
    2. BPlane polarized.
    3. CLeft-circularly polarized.
    4. DRight-circularly polarized.
  2. 2A birefringent material is best described as:
    1. AHaving two different transmission axes.
    2. BHaving atoms with two different resonant frequecies.
    3. CCircularly polarizing natural light.
    4. D Having two different indices of refraction.
  3. 3In a Young's Double Slit interference pattern, the fourth maximum has an irradiance that is roughly:
    1. AAs bright as the central maximum.
    2. BHalf as bright as the central maximum.
    3. C 8% as bring as the central maximum.
    4. D0.08% as bright as the central maximum.
  4. 4Which of the following is true for all lenses:
    1. AAll magnified images are inverted.
    2. BAll virtual images are inverted.
    3. CAll real images are inverted.
    4. DAll diminished images are inverted.
  5. 5The radius of curvature of a convex mirror of focal length -8 centimeters is:
    1. A-4 centimeters.
    2. B16 centimeters.
    3. C4 centimeters.
    4. D-16 centimeters.
  6. 6Virtual images are so called because:
    1. ALight rays that form the image only appear to come from the position where the image is.
    2. BThe image is too small to be seen with the naked eye.
    3. CThe image can only be projected onto a screen.
    4. DThe image is located behind the lens or mirror.
  7. 7The spectrum observed when white light is shone through a prism is best explained by:
    1. ADiffraction
    2. BDichroism
    3. CDistortion
    4. DDispersion
  8. 8The irradiance of a light ray is proportional to:
    1. AThe frequency of the light ray.
    2. BThe frequency of the light ray squared.
    3. CThe amplitude of the electric field of the light ray.
    4. D The amplitude of the electric field of the light ray squared.
  9. 9One reason why the sky appears blue is because:
    1. AMuch more red light than blue light is absorbed by air atoms.
    2. BRed light is reflected by the atmosphere.
    3. CBlue light is scattered to a greater extent than red light.
    4. DHigher energy light waves have more penetration through the atmosphere.
  10. 10Which of the following is true: I) A reflected beam always has the same irradiance as the incident beam; II) a reflected beam lies in the same plane as the incident beam; III) a reflected beam always makes an angle θ = sin-1(n t/n i) with the normal to the interface.
    1. AI only.
    2. B I and II.
    3. CII and III.
    4. DII only.

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A-Level MCAT Test sobre MCAT Physics - Optics, creado por Jen Molte el 21/05/2014.
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