Object-Image Relationships for Mirrors & Lenses
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Questions and Answers

For an object placed between 2F' and the convex lens, where is the image located?

  • Beyond 2F (correct)
  • At 2F
  • At F
  • At F'

    • In which case for convex lenses does the image always end up smaller than the object?

  • Case II
  • Case IV
  • Case I (correct)
  • Case III

    • What happens to the size of the image formed by a concave mirror?

  • It is always equal to the object
  • It is always smaller than the object
  • It is always larger than the object (correct)
  • It varies depending on the object's location

    • When an object is placed at F' for a convex lens, what type of image is formed?

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

    In which type of lens does the image orientation always remain upright?

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

    If an object is placed at infinity in front of a concave lens, what happens to the image?

    <p>No image is formed</p> Signup and view all the answers

    What is the main purpose of a lens in optical devices like cameras and microscopes?

    <p>To refract light rays, causing them to converge or diverge</p> Signup and view all the answers

    Which type of lens is thicker at the middle than at the rim?

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

    How many focal points do converging and diverging lenses have each?

    <p>Two focal points each</p> Signup and view all the answers

    In the lens equation, what does a positive value for 'di' indicate?

    <p>A real image</p> Signup and view all the answers

    Where are virtual images seen in relation to the lens?

    <p>On the same side as the object</p> Signup and view all the answers

    How can one determine the location of an image formed by a lens other than using ray diagrams?

    <p>Direct calculation using the lens equations</p> Signup and view all the answers

    In Case I, where is the image located relative to the focal point (F), 2F, and the lens?

    <p>Beyond 2F</p> Signup and view all the answers

    In Case II with a convex lens, what is the nature of the image when the object is located at 2F'?

    <p>Real and inverted</p> Signup and view all the answers

    For Case III with a convex lens and an object located between 2F' and F', where is the image located?

    <p>At 2F</p> Signup and view all the answers

    When an object is located at F' with a convex lens, where is the image located?

    <p>At F'</p> Signup and view all the answers

    What happens to the size of the image in Case II compared to the original object?

    <p>Image size is larger</p> Signup and view all the answers

    How does the orientation of the image in Case IV compare with that of the original object?

    <p>Image is inverted</p> Signup and view all the answers

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