Refraction of Light
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Questions and Answers

What happens to light when it enters a denser medium?

  • It increases in speed and continues in a straight line.
  • It is reflected back into the original medium.
  • It slows down and bends towards the normal. (correct)
  • It bends away from the normal.
  • How does the angle of incidence relate to the angle of refraction according to the law of refraction?

  • The angle of refraction increases with the angle of incidence, but not always at the same amount. (correct)
  • The angle of refraction is always equal to the angle of incidence.
  • The angle of refraction is independent of the angle of incidence.
  • As the angle of incidence increases, the angle of refraction decreases.
  • What causes a mirage to occur?

  • Reflection of light from surfaces.
  • Total internal reflection of light in the atmosphere.
  • Dispersion of light through prisms in the air.
  • Refraction of light through layers of air at different temperatures. (correct)
  • What is the angle of refraction?

    <p>The angle between the refracted ray and the normal.</p> Signup and view all the answers

    What occurs when light exits a denser medium into a less dense medium?

    <p>It bends away from the normal.</p> Signup and view all the answers

    Study Notes

    Refraction

    • Refraction is the bending of light as it travels from one medium to another
    • This bending causes objects to appear in a different position than their actual location
    • Refraction happens because light changes speed when passing through different densities of materials.

    Why Does Refraction Happen?

    • Denser Medium: When light enters a denser medium (e.g., air to glass), it slows down and bends towards the normal (an imaginary line perpendicular to the surface)
    • Less Dense Medium: When light enters a less dense medium (e.g., glass to air), it speeds up and bends away from the normal

    The Refracted Ray

    • The refracted ray is the path of the light as it passes through the new medium

    Angle of Refraction

    • The angle of refraction is the change in direction of light as it bends
    • It's measured as the angle of the refracted ray relative to the normal.

    The Law of Refraction

    • As the angle of incidence increases, the angle of refraction increases, but not always at the same amount.
    • This law is used to predict how light will bend.
    • When light travels from a less dense medium to a denser medium, it bends towards the normal.
    • When light travels from a denser medium to a less dense medium, it bends away from the normal.

    Mirage

    • A mirage is the refraction of light through air with different temperatures and densities (e.g., warm air and cold air).
    • Warm air is less dense than cold air.

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    Description

    Explore the principles of refraction, the bending of light as it passes through different mediums. Understand the behavior of light in various densities, the angle of refraction, and the law governing this phenomenon. This quiz will test your knowledge about how light interacts with materials.

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