Calculate the near point of a farsighted person if she was prescribed a corrective lens of...
Calculate the near point of a farsighted person if she was prescribed a corrective lens of power +2.00 diopters. Calculate the far point of a nearsighted person if she was prescribed a corrective lens power of -1.5 diopters.
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Calculate the near point of a farsighted person if she was
prescribed a corrective lens of...
A farsighted person has a near point of 100cm. A corrective lens needs to create a...
A farsighted person has a near point of 100cm. A corrective lens needs to create a virtual image at this distance if an object is placed at 25 cm. a. What power (in diopters) lens is needed? b. What type of lens is this? (diverging or converging)
A person has a near point of 14 cm and a far point of 82 cm....
A person has a near point of 14 cm and a far point of 82 cm. Is the person nearsighted or farsighted? What focal length corrective lens will allow this person to read the whiteboard from the back of a large classroom? Are the corrective lenses converging or diverging? What is the power of the corrective lenses?
Claudia is nearsighted. She has a near point of 12 cm and a far point of...
Claudia is nearsighted. She has a near point of 12 cm and a far point of 17 cm. If the corrective lens is 2.0 cm from Claudia’s eye, what lens power will enable her to see distant objects clearly? -6.7 diopters +8.5 diopters -5.3 diopters – 17 diopters
For a normal eye, the near point is 25.0 cm. This is where you would like...
For a normal eye, the near point is 25.0 cm. This is where you would like to place the printed material such as the newspaper to read. The far point is very far away. What type and focal length corrective contact lens should a nearsighted person whose far point is 80.0 cm wear? What is the power of this lens? What type and focal length corrective contact lens should a farsighted person wear if the persons near point is 60.0...
A farsighted person has a near point of 75 cm rather the normal 25 cm. What...
A farsighted person has a near point of 75 cm rather the normal 25 cm. What strength lens, in diopters, should be prescribed to correct this vision problem? Object , o = 25cm, image, i= -75cm(negative, in front of lens) Martin is severe myopia, with a far point of 15cm. he wants to get a glass that he ‘ll wear while using his computer, whose screen is 75cm away. What refractive power will these glasses required? Object, o=75 cm, image,...
A near-sighted person has a far point of 80 cm. A) What kind of corrective lens...
A near-sighted person has a far point of 80 cm. A) What kind of corrective lens the person will need if the lens is to be placed 1.5 cm from the eye? The answer is not 78.5, 80 or -1.27 B) What would be the power of the contact lens needed? Assume distance to contact lens from the eye to be zero.
What is the power of a contact lens worn by a farsighted person whose near point...
What is the power of a contact lens worn by a farsighted person whose near point is 1.00m? Assume normal near point as 0.250m. Answer: D
The near point of an eye is 111 cm. A corrective lens is to be used...
The near point of an eye is 111 cm. A corrective lens is to be used to allow this eye to focus clearly on objects 25.0 cm in front of it. What should be the focal length of this lens? What is the power of the needed corrective lens (in diopters)? Do not enter units.
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses...
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses are 1.60 cm in front of the eyes. (a) What is the focal length of the lens? cm (b) is the person nearsighted or farsighted? O nearsighted farsighted (e) If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed? diopters
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses...
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses are 1.80 cm in front of the eyes. (a) What is the focal length of the lens? cm (b) is the person nearsighted or farsighted? O nearsighted farsighted (C) If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed? diopters Need Help? Read it
A farsighted person has a near point of 100cm. A corrective lens needs to create a virtual image at this distance if an object is placed at 25 cm. a. What power (in diopters) lens is needed? b. What type of lens is this? (diverging or converging)
What is the power of a contact lens worn by a farsighted person whose near point is 1.00m? Assume normal near point as 0.250m. Answer: D
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses are 1.60 cm in front of the eyes. (a) What is the focal length of the lens? cm (b) is the person nearsighted or farsighted? O nearsighted farsighted (e) If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed? diopters
A person sees clearly wearing eyeglasses that have a power of -3.00 diopters when the lenses are 1.80 cm in front of the eyes. (a) What is the focal length of the lens? cm (b) is the person nearsighted or farsighted? O nearsighted farsighted (C) If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed? diopters Need Help? Read it
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