Reflection of Light at Curved Surfaces
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Questions and Answers

What is the direction of the normal line at the point of incidence on a curved surface?

  • Tangential to the surface
  • Perpendicular to the surface (correct)
  • Parallel to the surface
  • At an angle of 45 degrees to the surface

    • What is the relationship between the angle of incidence and the angle of reflection on a curved surface?

  • The angle of incidence is equal to the angle of reflection (correct)
  • The angle of incidence is half the angle of reflection
  • The angle of incidence is twice the angle of reflection
  • The angle of incidence is unrelated to the angle of reflection

    • What is the characteristic of the image formed by a convex mirror?

  • Virtual, upright, and smaller than the object (correct)
  • Real, upright, and larger than the object
  • Real, inverted, and larger than the object
  • Virtual, inverted, and smaller than the object

    • What happens to rays parallel to the principal axis when they strike a concave mirror?

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

    What is the focal point of a curved mirror?

    <p>A point where parallel rays converge or appear to diverge from</p> Signup and view all the answers

    What is the formula that relates the object distance, image distance, and focal length for curved mirrors?

    <p>1/f = 1/v + 1/u</p> Signup and view all the answers

    Study Notes

    Normal Line and Angle of Incidence/Reflection

    • The normal line at the point of incidence on a curved surface is perpendicular to the tangent to the surface at that point.
    • The angle of incidence is the angle between the incident ray and the normal line.
    • The angle of reflection is the angle between the reflected ray and the normal line.
    • The angle of incidence is always equal to the angle of reflection, regardless of the shape of the curved surface.

    Convex Mirrors

    • Images formed by convex mirrors are always virtual, upright, and smaller than the object.
    • A virtual image is an image that cannot be projected onto a screen.
    • Convex mirrors are also called diverging mirrors because they diverge parallel rays of light.

    Concave Mirrors

    • Rays of light parallel to the principal axis of a concave mirror converge at a point called the focal point after reflecting off the mirror.
    • Concave mirrors are also called converging mirrors.

    Focal Point

    • The focal point of a curved mirror is the point where parallel rays of light converge after reflection from the mirror.

    Mirror Formula

    • The mirror formula relates the object distance (u), image distance (v), and focal length (f) of a curved mirror:
      • 1/u + 1/v = 1/f
      • Where u is the distance between the object and the mirror, v is the distance between the image and the mirror, and f is the focal length of the mirror.

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    Description

    Test your understanding of the reflection of light at curved surfaces, including convex and concave mirrors, and the law of reflection. Learn how the angle of incidence and reflection are measured and how the law of reflection applies to both flat and curved surfaces.

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