raydiagrams

# raydiagrams - be negative if the object is an image from...

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Rules for Ray Diagrams: [Real Images] {Virtual Images} [1] The image will be located where rays from a point on the object [are again focused to a point]{appear to be focused to a point}. [2] Replace the mirror or lens with a straight line representing the vertical plane of the lens. [3] Any ray that comes in perpendicular to the mirror or lens plane will [pass out through the focal point]{appear to be from the focal point}. [4] Mirrors: Any ray incident upon the center of the mirror is reflected at an equal angle (law of reflection). Lenses: any ray through the center of the lens will be unchanged (chief ray). [5] Any incident ray [through the focal point]{that appears to go through the focal point} will come out perpendicular to the plane of the lens or mirror. Sign Conventions for Mirrors: R: positive for concave, negative for convex. f: positive for concave, negative for convex. p: positive for objects on the real side, negative for objects on the virtual side (can only

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Unformatted text preview: be negative if the object is an image from another mirror or a lens). q: positive for images on the real side, negative for images on the virtual side. h: positive when erect, negative when inverted. Sign Conventions for Lenses: R: positive for convex surfaces (r is on transmitted side), negative for concave surfaces (r is on incident side). f: positive for converging lenses, negative for diverging lenses. p: positive if on the incident side of the lens, negative if on the transmitted side of the lens (can only be negative if the object is an image from another lens or mirror). q: positive if on the transmitted side of the lens, negative if on the incident side of the lens. h: positive when erect, negative when inverted. Convex-Concave Lenses Converging: Double Convex Convex-Concave Plano-Convex Diverging: Double Concave Plano-Concave (nearsighted lens)...
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