Bellwork
Feb. 21, 2017
Find the image distance, magnification and describe the image characteristics, if an object is 12.5 cm from a concave mirror with focal length 15.0 cm.
di = ?
M = ?
Constructing Ray Diagrams ­ Converging Lens
To construct a ray diagram, draw these principal rays:
after (1) A ray parallel to the principal axis that passes through the focal point refraction.
(2) A ray through the center of the lens that does not change direction.
(3) A ray through the focal point in front of the lens that emerges parallel to the principal axis after refraction.
Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Converging Lens
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Constructing Ray Diagrams ­ Diverging Lens
To construct a ray diagram, draw these principal rays:
(1) A ray parallel to the principal axis will pass through the lens and be bent by in front of the lens.
the lens in the same direction as the focal point (2) A ray through the center of the lens goes straight through.
on the far side of the lens is (3) A ray that is heading for the focal point bent so that it emerges parallel to the principal axis.
Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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Constructing Ray Diagrams ­ Diverging Lens
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