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INPUT   DATA

♥ EXAMPLE Of Input/Output

Title

Focal length of mirror, f		cm
Distance of object from mirror, so		cm

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OUTPUT   VARIABLES   &   GRAPHS

Variables	Values	Units
♦  Distance of Image from mirror, si		cm
♦  Linear magnification, M

Reflection and Spherical Mirrors

A light reflection model describes the interaction of light with a surface, in terms of the properties of the surface and the nature of the incident light. Ray diagrams can be used to determine the image location, size, orientation and type of image formed of objects when placed at a given location in front of a convex or concave spherical mirror. To obtain more accurate numerical information about image distance and object size, it is necessary to use the Mirror equation and the Magnification equation.

The mirror equation and the magnification equation are stated as follows:

where
     f = local length of the mirror = half its radius of curvature (+ve for concave, -ve for convex)
     s_o = object distance from mirror
     s_i = image distance from mirror (-ve if image is behind mirror)
     M = object-to-image linear magnification

Tips

    ◊ Use link EXAMPLE Of Input/Output  to demo data entry expectations and results; you may edit & use it as starting point

BIBLIOGRAPHY

• Bueche FJ & Hecht E; College Physics, Schaum's Outlines Series; McGraw Hill, New York, 1997.
• Lowe TL & Rounce JF; Calculations For A-Level Physics; Nelson Thornes Ltd, Cheltenham, UK, 2002