Converging Lenses (Leaving Cert Physics): Flashcards
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Practise the cards
15 cards from this deck
Shape of converging (convex) lens
Shape of converging (convex) lens
Thicker at centre than at edges
Focal point definition
Focal point definition
Point where parallel light rays meet after passing through lens
How is a real image formed?
How is a real image formed?
Light rays actually intersect after passing through lens
Can a real image be projected on a screen?
Can a real image be projected on a screen?
Yes
Orientation of real image from converging lens
Orientation of real image from converging lens
Inverted (upside down)
How is a virtual image formed?
How is a virtual image formed?
Light rays appear to diverge from a point
Can a virtual image be projected on a screen?
Can a virtual image be projected on a screen?
No
Orientation of virtual image from converging lens
Orientation of virtual image from converging lens
Upright
Image when object beyond 2f
Image when object beyond 2f
Real, diminished, inverted, between f and 2f opposite side
Image when object at 2f
Image when object at 2f
Real, same size, inverted, at 2f opposite side
Image when object between f and 2f
Image when object between f and 2f
Real, magnified, inverted, beyond 2f opposite side
Image when object at focal point f
Image when object at focal point f
No image formed (rays emerge parallel)
Image when object inside focal length
Image when object inside focal length
Virtual, magnified, upright, same side as object
How does a magnifying glass work?
How does a magnifying glass work?
Object inside focal length creates magnified, upright virtual image