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15 cards from this deck
By refracting light
Thicker in middle than at edges
Converging lenses
Distance from lens centre to principal focus
Refracts through principal focus
Thicker at edges, thinner in centre
Diverging lenses
Causes light to diverge (spread out)
Light comes together to form image (e.g., screen/retina)
Only convex/converging lenses
Light rays diverge, object appears in different place
Always produce virtual images
Imaginary line perpendicular (90°90°90°) to boundary
Bends towards the normal
Bends away from the normal
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