Electrify Your Knowledge
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Electrify Your Knowledge

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@EnviousRetinalite

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Questions and Answers

What is the speed of light?

  • 200,000 km per second
  • 300,000 km per second (correct)
  • 400,000 km per second
  • 100,000 km per second

    • What is the Law of Reflection?

  • The angle of reflection and incidence are perpendicular to each other
  • The angle of reflection equals the angle of incidence (correct)
  • The angle of reflection is always smaller than the angle of incidence
  • The angle of reflection is always greater than the angle of incidence

    • What is the difference between light absorption and reflection?

  • Absorption is when light is not reflected by a surface, reflection is when light bounces off a surface (correct)
  • Absorption is when light goes through a surface, reflection is when light is blocked by a surface
  • Absorption is when light bounces off a surface, reflection is when light is absorbed by a surface
  • Absorption is when light is refracted by a surface, reflection is when light is diffracted by a surface

    • Which type of lens is thicker at the sides than in the middle?

    <p>Concave Lens</p> Signup and view all the answers

    What type of vision problem can be corrected using convex lenses?

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

    What type of image is formed by a concave lens?

    <p>Upright and smaller sized</p> Signup and view all the answers

    Which type of lens is used to correct farsighted vision?

    <p>Convex lens</p> Signup and view all the answers

    What type of image is formed by a convex lens?

    <p>Upright and larger sized</p> Signup and view all the answers

    What type of vision problem can be corrected using concave lenses?

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

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