Optics and Electromagnetic Spectrum Quiz
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Questions and Answers

Why does a very thin film appear transparent?

  • It absorbs all visible light
  • It transmits all visible light
  • It reflects no visible light (correct)
  • It reflects all visible light

    • What causes the colors seen on an oil slick?

  • Refraction of light
  • Reflection and interference (correct)
  • Absorption of light
  • Diffraction of light

    • Why does Aristotle believe that the Earth is spherical?

  • Because of the Earth's rotation
  • Because of the curved shadow of the Earth during an eclipse (correct)
  • Because of the Earth's magnetic field
  • Because of the Earth's gravitational field

    • What is the reason for wearing sunglasses at the beach during summer days?

    <p>To reduce glare from reflected surfaces</p> Signup and view all the answers

    What is the result of shining a beam of white light through a thick glass plate at an angle?

    <p>All colors emerge at the same time</p> Signup and view all the answers

    What is the reason why the wavelike nature of a moving baseball is not noticed in everyday life?

    <p>Its wavelength is too small</p> Signup and view all the answers

    What occurs when the angle of incidence is greater than a certain angle?

    <p>Total reflection occurs</p> Signup and view all the answers

    What is required to produce a hologram of an object, in addition to the object and photographic film?

    <p>A beam of coherent light and a mirror</p> Signup and view all the answers

    Which of the following statements is true about the two beams of light?

    <p>The red beam has a higher number of photons per second</p> Signup and view all the answers

    What is the process by which many living creatures produce light?

    <p>Bioluminescence</p> Signup and view all the answers

    What happens to the energy per photon if the wavelengths of emitted light increase?

    <p>The energy per photon decreases</p> Signup and view all the answers

    What is the characteristic of two coherent light sources?

    <p>They have the same frequency and maintain a constant phase difference</p> Signup and view all the answers

    What is the force required to sustain the motion of a rocket moving in a straight line with constant speed in empty space?

    <p>Zero</p> Signup and view all the answers

    If you leap straight up inside a high-speed train while it gains speed, where will you land relative to your original position?

    <p>Slightly behind your original position</p> Signup and view all the answers

    What is the characteristic of a virtual image?

    <p>It can be focused on the retina</p> Signup and view all the answers

    What is the size of the image produced by a plane mirror compared to the object?

    <p>The same size</p> Signup and view all the answers

    What happens to the light transmitted in an optical fiber?

    <p>It is transmitted through the fiber with total internal reflection</p> Signup and view all the answers

    What is the relationship between the speed of light in a vacuum and in diamond?

    <p>The speed of light is 2.42 times slower in diamond than in a vacuum</p> Signup and view all the answers

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