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Lenses

QuestionAnswer
If an image is outside the focus of a convex lens is it upright or inverted? Inverted
If an image is outside the focus of a convex lens is it enlarged or diminished? Diminished
If an image is inside the focus of a convex lens is it upright or inverted? Upright
If an image is inside the focus of a convex lens is it enlarged or diminished? Enlarged
At what distance does an object appear to be the same size as the image it creates in a convex lense Twice the focal length
At what distance does the image become virtual in a convex lens? Less than the focal length
What are the three properties of images formed by concave lenses? Virtual, diminished and upright
What is the unit of measurement for the power of a lens? per meter (m^-1)
Name the 9 parts of the eye Iris. Ciliary muscle. Cornea. Aqueous humour. Vitreous humour. Crystalline lens. Retina. Optic nerve. Sclerotic.
What part of the eye controls light entering the eye? The Iris
What parts of the eye focus light? The cornea & crystalline lens work as a converging system. Aqueous humour & vitreous humour.
What does the retina do? It is a light sensitive screen that transmits signals to the brain.
What do the ciliary muscles do?
Created by: JackEatonK98
 

 



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