Your can treat the lens in your eye as a converging thin lens. First, estimate the...
Your can treat the lens in your eye as a converging thin lens. First, estimate the diameter of your eye. Now, bring this page to the minimum distance from your eyes that these words will stay in sharp focus. Measure that distance.
(a) Compute the focal length of your eye.
(b) What strength lens (in diopters) would you need in a pair of corrective lenses to cut this focal length in half?
(For trig based physics class)
Homework Answers
Diameter of eye can be estimated for adults is around 4.0 cm
a) Focal length = half of diameter
Which means focal length will be 2cm or 2mm.
b)If the focal length becomes half i.e 1 cm then power of the lens used will be,
Power = 1/focal length(in metres)
=1/0.01 = 100 diopters
Add Answer to:
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hint: a normal eye will expect to find an image at...
Lens combinations. You have two lenses - a converging lens with f = 3 cm and a diverging lens with f = -3 cm. You put them very close to each other. What is the effective focal length of the lens combination? What is the power of the lens combination? (Remember power is a quantity measured in diopters or 1/m.) What do these numerical answer you find mean? Or equivalently, what would you see through such a lens combination? Binocular...
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just the conclusion and the question parts + the graph of M
versus q
thanks!
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need help please
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objective. what is the overall lenght of the microscope to view the
bug with a relaxed a eye.
hint: a normal eye will expect to find an image at...
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