PHYS 2 rules for rays midterm 1

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Last updated 5:26 AM on 6/10/26
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8 Terms

1
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lens equation

1/f= 1/do+1/di

2
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magnet equation

m=-di/do

3
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distance between object and lens

do> always positove

4
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distance between image and lens

di>0 . Di is positove. Image is real. On opposite side of lens

di<0. Di is negative. Image is virtual and on same side as lines ( primarily divergent)

5
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focal point distances (f)

F>0 for converging lens

F<0 for divergent lens

6
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Magnification

M+, then it is an upright image

M-, then it is an inverted image

7
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Rays entering a smaller N

Rays entering a smaller N, bend AWAY from the normal of the interface

<p>Rays entering a smaller N, bend AWAY from the normal of the interface</p>
8
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Rays entering a larger N

Rays entering a smaller N, bend TOWARDS the normal of the interface

<p>Rays entering a smaller N, bend TOWARDS the normal of the interface</p>