AP_Physics_B_-_Special_Case_Ray_Diagrams

# AP_Physics_B_-_Special_Case_Ray_Diagrams - SpecialCaseRay...

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Special Case – Ray  Diagrams AP Physics B

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What if the object is ON “f “ ? f f Principal axis f C If the object is ON the focal point, no image is produced as there is NO intersection.
Converging Lens – Inside of “f ” f f When object is inside of “f”, extend the 2 nd line of the rule, BACKWARDS! This image is VIRTUAL, ENLARGED, and UPRIGHT

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Converging Lens – Inside of “f “ f f Suppose we have an object placed 15 cm in front of a converging lens (f = 20 cm). Calculate the image position and characteristics. = = - = + = - = + = M d d M d d d M d d f i i i o i i o 15 1 15 1 20 1 1 1 1 -60 cm 4x As we thought. The image distance is negative, thus making it a VIRTUAL image. The magnification was positive and greater than 1, making it enlarged and upright. This is a MAGNIFYING GLASS!
Converging Mirror – Inside of “f “ f C The image is VIRTUAL , ENLARGED , and UPRIGHT . This is a compact mirror!

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Diverging Lens f f The image is VIRTUAL
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AP_Physics_B_-_Special_Case_Ray_Diagrams - SpecialCaseRay...

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