Ray Optics: Lenses and Mirrors Quiz
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Questions and Answers

What happens to the focal length of a converging lens as the refractive index of the lens material increases?

  • It becomes negative
  • It increases (correct)
  • It remains unchanged
  • It decreases

    • What effect does increasing the distance between an object and a convex lens have on the size of the image formed?

  • The size of the image remains unchanged
  • The image becomes blurred
  • The size of the image decreases
  • The size of the image increases (correct)

    • In which situation would a concave lens produce a virtual image?

  • When the object is located between the focal point and the lens
  • When the object is located at the center of curvature of the lens
  • When the object is located beyond twice the focal length of the lens (correct)
  • When the object is located at infinity

    • Which type of mirror can always produce a magnified virtual image of an object?

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

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