MCAT Physics - Optics

Question 1 of 10

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Light 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:

Select one of the following:

  • Randomly polarized.

  • Plane polarized.

  • Left-circularly polarized.

  • Right-circularly polarized.

Question 2 of 10

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A birefringent material is best described as:

Select one of the following:

  • Having two different transmission axes.

  • Having atoms with two different resonant frequecies.

  • Circularly polarizing natural light.

  • Having two different indices of refraction.

Question 3 of 10

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In a Young's Double Slit interference pattern, the fourth maximum has an irradiance that is roughly:

Select one of the following:

  • As bright as the central maximum.

  • Half as bright as the central maximum.

  • 8% as bring as the central maximum.

  • 0.08% as bright as the central maximum.

Question 4 of 10

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Which of the following is true for all lenses:

Select one of the following:

  • All magnified images are inverted.

  • All virtual images are inverted.

  • All real images are inverted.

  • All diminished images are inverted.

Question 5 of 10

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The radius of curvature of a convex mirror of focal length -8 centimeters is:

Select one of the following:

  • -4 centimeters.

  • 16 centimeters.

  • 4 centimeters.

  • -16 centimeters.

Question 6 of 10

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Virtual images are so called because:

Select one of the following:

  • Light rays that form the image only appear to come from the position where the image is.

  • The image is too small to be seen with the naked eye.

  • The image can only be projected onto a screen.

  • The image is located behind the lens or mirror.

Question 7 of 10

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The spectrum observed when white light is shone through a prism is best explained by:

Select one of the following:

  • Diffraction

  • Dichroism

  • Distortion

  • Dispersion

Question 8 of 10

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The irradiance of a light ray is proportional to:

Select one of the following:

  • The frequency of the light ray.

  • The frequency of the light ray squared.

  • The amplitude of the electric field of the light ray.

  • The amplitude of the electric field of the light ray squared.

Question 9 of 10

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One reason why the sky appears blue is because:

Select one of the following:

  • Much more red light than blue light is absorbed by air atoms.

  • Red light is reflected by the atmosphere.

  • Blue light is scattered to a greater extent than red light.

  • Higher energy light waves have more penetration through the atmosphere.

Question 10 of 10

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Which 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.

Select one of the following:

  • I only.

  • I and II.

  • II and III.

  • II only.

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MCAT Physics - Optics

Jen Molte
Quiz by , created over 2 years ago

A-Level MCAT Quiz on MCAT Physics - Optics, created by Jen Molte on 21/05/2014.

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Jen Molte
Created by Jen Molte over 2 years ago
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