enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Mirror image - Wikipedia

    en.wikipedia.org/wiki/Mirror_image

    Thus reflection is a reversal of the coordinate axis perpendicular to the mirror's surface. Although a plane mirror reverses an object only in the direction normal to the mirror surface, this turns the entire three-dimensional image seen in the mirror inside-out, so there is a perception of a left-right reversal. Hence, the reversal is somewhat ...

  3. Specular reflection - Wikipedia

    en.wikipedia.org/wiki/Specular_reflection

    The reversal of images by a plane mirror is perceived differently depending on the circumstances. In many cases, the image in a mirror appears to be reversed from left to right. If a flat mirror is mounted on the ceiling it can appear to reverse up and down if a person stands under it and looks up at it.

  4. Plane mirror - Wikipedia

    en.wikipedia.org/wiki/Plane_mirror

    A ray diagram for a plane mirror. The incident light rays from the object create an apparent mirror image for the observer. A plane mirror is made using some highly reflecting and polished surface such as a silver or aluminium surface in a process called silvering. [6] After silvering, a thin layer of red lead oxide is applied at the back of ...

  5. Helmholtz reciprocity - Wikipedia

    en.wikipedia.org/wiki/Helmholtz_reciprocity

    If when the quantity of light i polarized in the plane a 1 proceeds from 1 in the direction of the given ray, that part k thereof of light polarized in a 2 arrives at 2, then, conversely, if the quantity of light i polarized in a 2 proceeds from 2, the same quantity of light k polarized in a 1 [Kirchhoff's published text here corrected by ...

  6. Virtual image - Wikipedia

    en.wikipedia.org/wiki/Virtual_image

    The magnification of the virtual image formed by the plane mirror is 1. Top: The formation of a virtual image using a diverging lens. Bottom: The formation of a virtual image using a convex mirror. In both diagrams, f is the focal point, O is the object, and I is the virtual image, shown in grey. Solid blue lines indicate (real) light rays and ...

  7. Reflection (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Reflection_(mathematics)

    The image of a figure by a reflection is its mirror image in the axis or plane of reflection. For example the mirror image of the small Latin letter p for a reflection with respect to a vertical axis (a vertical reflection) would look like q. Its image by reflection in a horizontal axis (a horizontal reflection) would look like b.

  8. Corner reflector - Wikipedia

    en.wikipedia.org/wiki/Corner_reflector

    The incoming ray is reflected three times, once by each surface, which results in a reversal of direction. [ 1 ] [ 2 ] To see this, the three corresponding normal vectors of the corner's perpendicular sides can be considered to form a basis (a rectangular coordinate system ) ( x , y , z ) in which to represent the direction of an arbitrary ...

  9. Plane of incidence - Wikipedia

    en.wikipedia.org/wiki/Plane_of_incidence

    The plane of incidence is defined by the incoming radiation's propagation vector and the normal vector of the surface. In describing reflection and refraction in optics, the plane of incidence (also called the incidence plane or the meridional plane [citation needed]) is the plane which contains the surface normal and the propagation vector of the incoming radiation. [1]