Physics Chapter on Mirrors and Light
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Questions and Answers

What type of mirror has a reflective surface that is curved inward?

  • Planar
  • Convex
  • Concave (correct)
  • Flat

    • Where is the image located when viewed from the side of a flat mirror?

  • The image is on the same side as the object (correct)
  • The image appears behind the mirror
  • The image cannot be determined
  • The image is further away than the object

    • What does the principal focal point (f) of a mirror represent?

  • Half the distance between the center of curvature and the vertex (correct)
  • The full distance from the mirror to the object
  • The vertex of the mirror
  • Twice the radius of the sphere

    • Which of the following is a characteristic of convex mirrors?

    <p>They produce virtual images</p> Signup and view all the answers

    In a top view of a concave mirror, where does the image appear to come from?

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

    What type of light is typically reflected from horizontal surfaces like roads and water?

    <p>Horizontally polarized light</p> Signup and view all the answers

    What occurs when a second polarizing filter is placed perpendicular to a first filter?

    <p>It absorbs nearly all light passing through the first filter.</p> Signup and view all the answers

    How do traditional mirrors allow you to see your reflection?

    <p>By reflecting light off their surface.</p> Signup and view all the answers

    What happens to light rays that are parallel to the principal axis when they strike a concave mirror?

    <p>They converge through the focal point.</p> Signup and view all the answers

    Which statement is true about polarizing filters in 3D movies?

    <p>Each camera is equipped with different polarizing filters.</p> Signup and view all the answers

    What is the primary function of sunglasses that absorb horizontally polarized light?

    <p>To reduce glare caused by reflected horizontally polarized light.</p> Signup and view all the answers

    When an image is formed on the same side of the concave mirror as the object, what type of image is it?

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

    Which statement regarding the characteristics of images produced by concave mirrors is incorrect?

    <p>The image can only be real.</p> Signup and view all the answers

    In a ray diagram for a concave mirror, how do the rays behave when passing through the center of curvature?

    <p>They reflect back on themselves.</p> Signup and view all the answers

    Which of the following descriptions of image orientation produced by a concave mirror is accurate?

    <p>Images can be either upright or inverted.</p> Signup and view all the answers

    What happens to the size of the image when an object is positioned beyond the center of curvature in a convex mirror?

    <p>The image is smaller than the object.</p> Signup and view all the answers

    Which statement is true when the object is positioned at the focal point of a convex mirror?

    <p>The image is non-existent.</p> Signup and view all the answers

    When an object is placed between the center of curvature and the focal point in a convex mirror, what is the characteristic of the image formed?

    <p>The image is inverted and larger than the object.</p> Signup and view all the answers

    What is the nature of the image formed when the object is at the center of curvature in a convex mirror?

    <p>The image is real and inverted, same size as the object.</p> Signup and view all the answers

    What does the letter 'C' represent in the context of convex mirror image formation?

    <p>Center of curvature.</p> Signup and view all the answers

    What can be said about the image produced by a convex mirror?

    <p>The image is virtual and erect.</p> Signup and view all the answers

    If the magnification of an image produced by a convex mirror is 0.5, what can we conclude about the size of the image compared to the object?

    <p>The image is 50% the size of the object.</p> Signup and view all the answers

    What sign convention applies to the focal length of a convex mirror?

    <p>Focal length is negative.</p> Signup and view all the answers

    Which statement correctly defines the relationship between the object's distance (do) and the image's distance (di) in a convex mirror?

    <p>Do is positive; di is negative.</p> Signup and view all the answers

    If an object is placed very close to a convex mirror, what happens to the characteristics of the image?

    <p>The image is smaller and erect.</p> Signup and view all the answers

    What is the characteristic of the image when an object is placed beyond the focal point of a concave mirror?

    <p>The image is real, inverted, and diminished.</p> Signup and view all the answers

    What type of image is formed when an object is placed at the focal point of a lens?

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

    When an object is placed between 2f and f, how does the size of the image compare to the object?

    <p>It is larger than the object</p> Signup and view all the answers

    Where is the image formed when the object is placed at the focal point of a concave mirror?

    <p>At infinity.</p> Signup and view all the answers

    Where is the image located when an object is placed within the focal length of a lens?

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

    What occurs when an object is placed between the focal point and the pole of a concave mirror?

    <p>The image is virtual, erect, and enlarged.</p> Signup and view all the answers

    Which of the following describes the characteristics of the image when an object is placed at 2f from the lens?

    <p>Inverted, real, and the same size as the object</p> Signup and view all the answers

    What happens to the light rays when an object is placed exactly at the focal point of a lens?

    <p>They become parallel and do not form an image</p> Signup and view all the answers

    At what position is the image formed when the object is located at the center of curvature?

    <p>At the center of curvature.</p> Signup and view all the answers

    What type of image is formed when the object is located between the focal point and the center of curvature?

    <p>Real and enlarged.</p> Signup and view all the answers

    What describes the focal point of a concave mirror?

    <p>It is located behind the mirror.</p> Signup and view all the answers

    How does the size of the image formed when the object is at the center of curvature compare to the object size?

    <p>The image is the same size as the object.</p> Signup and view all the answers

    What is the nature of the image produced by a concave lens?

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

    When an object is placed 15 cm from a convex lens with a focal length of 7.5 cm, what is the nature of the image formed?

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

    What distance would you expect the image to be located if the object is placed at 15 cm from a convex lens?

    <p>17 cm from the lens</p> Signup and view all the answers

    What is the height of the image produced when the object is 2.5 cm tall and placed at the specified distance from a convex lens?

    <p>-3.5 cm</p> Signup and view all the answers

    What characteristic of images formed by concave lenses is consistently true?

    <p>They are always virtual images</p> Signup and view all the answers

    What is the behavior of light rays as they pass through a convex lens?

    <p>They converge at the focal point.</p> Signup and view all the answers

    Where is the optical center located in a convex lens?

    <p>At a point where light rays pass without bending.</p> Signup and view all the answers

    What type of image is formed when an object is placed at 2f in front of a convex lens?

    <p>Inverted, real, and same size as the object.</p> Signup and view all the answers

    Which formula relates the object distance, image distance, and focal length of a lens?

    <p>$f = rac{1}{d_o} - rac{1}{d_i}$</p> Signup and view all the answers

    In a ray diagram for a convex lens, what happens to a ray that travels parallel to the principal axis?

    <p>It refracts through the focal point on the opposite side.</p> Signup and view all the answers

    What is the calculated image distance ($d_i$) when an object is placed 9.0 cm from a concave lens with a focal length of 7.5 cm?

    <p>15 cm</p> Signup and view all the answers

    Which formula expresses the relationship between magnification ($m$), image height ($h_i$), and object height ($h_o$)?

    <p>m = h_i / h_o</p> Signup and view all the answers

    What type of image is formed by a concave lens when an object is placed closer than the focal length?

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

    What is the magnification ($m$) of an object height of 4.0 cm when the image height is calculated to be 1.5 cm?

    <p>0.38</p> Signup and view all the answers

    Which of the following statements accurately describes the characteristics of the image formed by the concave lens in this scenario?

    <p>The image is virtual and erect.</p> Signup and view all the answers

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