Lenses (Leaving Cert Physics): Flashcards
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Practise the cards
14 cards from this deck
Three main optical components of the human eye
Three main optical components of the human eye
Cornea, lens, retina
Function of the cornea
Function of the cornea
Clear front surface that begins focusing incoming light
Function of the lens in the eye
Function of the lens in the eye
Transparent structure that fine-tunes the focus of light
Function of the retina
Function of the retina
Light-sensitive layer where images form; converts light to signals
Myopia (short-sightedness) symptom
Myopia (short-sightedness) symptom
Nearby objects clear, distant objects blurred
Lens type to correct myopia
Lens type to correct myopia
Diverging (concave) lenses
Hyperopia (long-sightedness) symptom
Hyperopia (long-sightedness) symptom
Distant objects clear, nearby objects blurred
Lens type to correct hyperopia
Lens type to correct hyperopia
Converging (convex) lenses
Lens type used in a camera
Lens type used in a camera
Converging lens
Type of image formed by a camera lens
Type of image formed by a camera lens
Real, inverted image
Number of lenses in a compound microscope
Number of lenses in a compound microscope
Two converging lenses
Function of objective lens in compound microscope
Function of objective lens in compound microscope
Creates initial magnified, real image of specimen
Function of eyepiece lens in compound microscope
Function of eyepiece lens in compound microscope
Further magnifies the image from the objective lens
Function of objective lens in astronomical telescope
Function of objective lens in astronomical telescope
Collects light from distant object and forms real image