A person who is nearsighted will need what type of lenses in his glasses in order to see correctly?

A person who is nearsighted will need what type of lenses in his glasses in order to see correctly?
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ANSWER: DIVERGING or CONCAVE LENSES
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A person wears spectators with concave lenses. It means that normally (when not using glasses), the image of distant objects is focused in his eyes – (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Description : A person wears spectators with concave lenses. It means that normally (when not using glasses), the image of distant objects is focused in his eyes – (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Last Answer : (2) in front of the retina Explanation: A concave lens is used to correct short-sightedness (myopia). In myopia, images are formed in front of the retina, resulting in a blurred image. This ... relatively too long or the refractive powers of the cornea and lens of the eye are relatively too strong.

A person wears spectates with concave lenses. It means that normally (when not using glasses), the image of distant objects is focussed in his eyes (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Description : A person wears spectates with concave lenses. It means that normally (when not using glasses), the image of distant objects is focussed in his eyes (1) behind the retina (2) in front of the retina (3) on the retina (4) on the blind spot

Last Answer : in front of the retina

Why can't a nearsighted person clearly see objects that are far away?

Description : Why can't a nearsighted person clearly see objects that are far away?

Last Answer : Need Answer

If I wanted to try contact lenses, could I just order some on Amazon, using the dioptric values of my current glasses?

Description : If I wanted to try contact lenses, could I just order some on Amazon, using the dioptric values of my current glasses?

Last Answer : None of the ones on Amazon are prescription that I’m aware of. Did you find some that asked for your vision prescription?

Is there a website that can show you what nearsighted people see?

Description : Is there a website that can show you what nearsighted people see?

Last Answer : I always say that the impressionist painters must have been nearsighted, because that’s the closest thing I’ve encountered to what I see uncorrected. Especially the morning sunlight shining through the trees.

Do any of you wear glasses with progressive lenses? How long did it take you to get used to them?

Description : Do any of you wear glasses with progressive lenses? How long did it take you to get used to them?

Last Answer : answer:I adjusted to mine within a day. I’d not had the ability to look at close object without taking my lenses for near sightedness off, so once I had the progressives I felt right at home. I hope the adjustment works for you.

What is the best way to buy a pair of glasses and lenses?

Description : What is the best way to buy a pair of glasses and lenses?

Last Answer : If you have a script in hand, check out any local Lens Crafters

Where can I send my eye glasses frames, and have RX lenses made and installed?

Description : Where can I send my eye glasses frames, and have RX lenses made and installed?

Last Answer : I have had lenses replaced in glasses that I’ve had, and I have taken frames into an optical store that sold the same line and had them make the lenses. I would not want to risk buying lenses online because of the fitting. If eyeglasses are not correct, you can get horrible headaches.

Do you wear glasses / contact lenses?

Description : Not yet, but I should wear glasses.

Last Answer : I don't use any of them, luckily I don't have any problems with my eyes.

Are glasses or contact lenses cheaper?

Description : Is it cheaper to buy glasses or contact lenses?

Last Answer : Probably glasses

Will glasses or contact lenses come out cheaper?

Description : What comes out cheaper?

Last Answer : Ultimately, glasses (unless you mechanically destroy them) - contact lenses are only for a limited time.

Are contact lenses instead of glasses?

Description : Why do people wear contact lenses? Is it a replacement for glasses?

Last Answer : Yes, they replace the function of glasses, that is, they are instead of glasses.

Is there a term for someone who is nearsighted in one eye and farsighted in the other?

Description : Is there a term for someone who is nearsighted in one eye and farsighted in the other?

Last Answer : I have it too.

Do I need a copy of my prescription to order contact lenses online?

Description : Do I need a copy of my prescription to order contact lenses online?

Last Answer : It's helpful if you have a copy of your prescription. This can help you determine what type of contacts you need.

An explorer is riding his camel in the desert. Up ahead he sees what appears to be a pool of water. He can tell if it is a real pool of water or a mirage by putting on his polarized sun glasses because: w) the mirage is polarized and reflections from the water are not x) reflections from water are polarized while the mirage is not y) neither are polarized so one will not be able to discern a difference z) both are polarized so one will not be able to discern a difference

Description : An explorer is riding his camel in the desert. Up ahead he sees what appears to be a pool of water. He can tell if it is a real pool of water or a mirage by putting on his polarized sun ... not be able to discern a difference z) both are polarized so one will not be able to discern a difference 

Last Answer : ANSWER: X -- REFLECTIONS FROM WATER ARE POLARIZED WHILE THE MIRAGE S NOT

Who modernizes convex lenses ?

Description : Who modernizes convex lenses ?

Last Answer : Al Hazen by modernizing convex lenses.

How many types of lenses and what are they ?

Description : How many types of lenses and what are they ?

Last Answer : Two types. 1. Convex 2. Concave

An electron microscope gives higher magnification than an optical microscope, because: (1) It uses more powerful lenses (2) the velocity of electron is smaller than that of visible (3) the electrons have more energy than the light particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Description : An electron microscope gives higher magnification than an optical microscope, because: (1) It uses more powerful lenses (2) the velocity of electron is smaller than that of visible (3) the ... particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Last Answer : (4) the wavelength of electrons is smaller as compared to the wavelength of visible light Explanation: An electron microscope uses a beam of electrons to illuminate a specimen and produce a ... photons. Magnification is the process of enlarging something only in appearance, not in physical size.

What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Description : What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Last Answer : (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. Explanation: A compound microscope is a microscope which uses multiple lenses to collect light from the ... lens provides the primary magnification which is compounded (multiplied) by the ocular lens (eyepiece).

An electron microscope gives higher magnifications than an optical microscope because – (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as compared to the wavelength of visible light (3) The electrons have more energy than the light particulars (4) The electron microscope uses more powerful lenses

Description : An electron microscope gives higher magnifications than an optical microscope because - (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as ... have more energy than the light particulars (4) The electron microscope uses more powerful lenses

Last Answer : (2) The wavelength of electrons is smaller as compared to the wavelength of visible light Explanation: An electron microscope is a microscope that uses a beam of accelerated electrons as a spume ... a higher resolving power than a light microscope and can reveal the structure of smaller objects.

Which one of the following lenses should be used to correct the defect of astigmatism? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Description : Which one of the following lenses should be used to correct the defect of astigmatism? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Last Answer : (1) Cylindrical lens Explanation: Astigmatism is an optical defect in which vision is blurred due to the inability of the optics of the eye to focus a point object into a sharp focused image ... lens, and cannot be corrected by standard spectacle lenses, but can be corrected by contact lenses.

Rainbow is seen after rain because of hanging molecules of water which act as – (1) lenses (2) mirrors (2) prisms (4) slabs

Description : Rainbow is seen after rain because of hanging molecules of water which act as – (1) lenses (2) mirrors (2) prisms (4) slabs

Last Answer : (2) mirrors Explanation: In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. In a rainbow, raindrops in the air act as tiny prisms. Light enters the raindrop ... In the process, it is broken into a spectrum just like it is in a triangular glass prism.

Hyperrnetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Description : Hyperrnetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Last Answer : (4) Convex lenses Explanation: It can be corrected with convex lenses in eyeglasses or contact lenses. Convex lenses have a positive dioptric value, which causes the light to focus closer than its normal range.

An electron microscope gives higher magnifications than an optical microscope because : (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as compared to the wavelength of visible light (3) The electrons have more energy than the light particulars (4) The electron microscope uses more powerful lenses

Description : An electron microscope gives higher magnifications than an optical microscope because : (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as ... have more energy than the light particulars (4) The electron microscope uses more powerful lenses 

Last Answer : The wavelength of electrons is smaller as compared to the wavelength of visible light

What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Description : What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Last Answer : A microscope that has two sets of lenses : an occular lens and an eyepiece.

Hypermetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Description : Hypermetropia or longsight can be corrected by using : (1) Bifocal lenses (2) Cylindrical lenses (3) Concave lenses (4) Convex lenses

Last Answer : Convex lenses

Rainbow is seen after rain because of hanging molecules of water which act as (1) lenses (2) mirrors (2) prisms (4) slabs

Description : Rainbow is seen after rain because of hanging molecules of water which act as (1) lenses (2) mirrors (2) prisms (4) slabs

Last Answer : mirrors

Which one of the following lenses should be used to correct the defect of astigmatism ? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Description : Which one of the following lenses should be used to correct the defect of astigmatism ? (1) Cylindrical lens (2) Concave lens (3) Convex lens (4) Bifocal lens

Last Answer : Cylindrical lens

An electron microscope gives higher magnification than an optical microscope, because : (1) it uses more powerful lenses (2) the velocity of electron is smaller than that of visible light (3) the electrons have more energy than the light particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Description : An electron microscope gives higher magnification than an optical microscope, because : (1) it uses more powerful lenses (2) the velocity of electron is smaller than that of visible light (3) ... particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Last Answer : the wavelength of electrons is smaller as compared to the wavelength of visible light

Why do you need glasses to look in a mirror?

Description : Why do you need glasses to look in a mirror?

Last Answer : Let's say the object you are looking at is 12 feet behind you, and you hold the mirror 1 foot in front of your face. The light path from the object to your eye is 14 feet. You would be ... path would be only 12 feet.The object appears 13 feet behind the mirror, which is 1 foot from your face.

When optical technicians fit eyeglass lenses into plastic eyeglass frames, do they purposely adjust the frame shape in order to fit the lenses in?

Description : When optical technicians fit eyeglass lenses into plastic eyeglass frames, do they purposely adjust the frame shape in order to fit the lenses in?

Last Answer : No. They do not. My guess is that you’re remembering the frames incorrectly.

When you are focusing on a object in which order should the three objective lenses always be used?

Description : When you are focusing on a object in which order should the three objective lenses always be used?

Last Answer : Need answer

The Superintendent should examine the ________ to see that all _____concerning the set are neatly and correctly copied in the book, that the book contains no. B. order which does not concern the set, that B. orders which have become obsolete or void, have been cancelled under the _______signature, and that every order has been initialed by all the ______of the set a) Order book, B. orders, record clerk’s, sorters b) Postmaster dairy , B. orders, record clerk’s, sorters c) guidance book, B. orders, record clerk’s, sorters d) None of these

Description : The Superintendent should examine the ________ to see that all _____concerning the set are neatly and correctly copied in the book, that the book contains no. B. order which does not concern the set, that B ... clerk's, sorters c) guidance book, B. orders, record clerk's, sorters d) None of these

Last Answer : c) guidance book, B. orders, record clerk’s, sorters

Do you think 3D TV, the kind you don't need glasses to see, is the norm of the future?

Description : Do you think 3D TV, the kind you don't need glasses to see, is the norm of the future?

Last Answer : It will last – there has been to much R&D and tooling, etc., for it to be a passing fad. Locally large screen Plasma and LCD TVs are about one third of their price of a year ago. They don’t dump current stock unless they are pretty sure that it really is superseded.

Why do **** glasses emit static noise?

Description : Why do wine glasses emit static noise?

Last Answer : This is called seashell resonance.

What are glasses ?

Last Answer : glasses lens.

Which one of the following is used for sun glasses? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Description : Which one of the following is used for sun glasses? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Last Answer : (3) Crooks glass Explanation: A type of glass that contains cerium and other rare earths and has a high absorption of ultraviolet radiation is used in sunglasses. Sunglasses or sun glasses ... as variously termed spectacles or glasses exist, featuring lenses that are coloured, polarized or darkened.

Magnifying glasses are useful, because they create an enlarged: w) virtual image behind the actual object. x) real image behind the actual object. y) virtual image in front of the actual object. z) real image in front of the actual object.

Description : Magnifying glasses are useful, because they create an enlarged: w) virtual image behind the actual object. x) real image behind the actual object. y) virtual image in front of the actual object. z) real image in front of the actual object.

Last Answer : ANSWER: W -- VIRTUAL IMAGE BEHIND THE ACTUAL OBJECT. 

Which one of the following is used for sun glasses ? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Description : Which one of the following is used for sun glasses ? (1) Pyrex glass (2) Flint glass (3) Crooks glass (4) Crystal glass

Last Answer : Crooks glass

In desperate need of help for this decision about lenses?

Description : In desperate need of help for this decision about lenses?

Last Answer : I wouldn’t get an operation at 15; my son did at 24 and was very happy with it. (Think your eyes might change too much,) If you can afford them and hate wearing glasses, why not try contacts if they are appropriate for your vision needs?

Do contact lenses need to be changed daily?

Description : Do contact lenses need to be changed daily?

Last Answer : Contact lenses can be changed at various intervals, depending on the brand, and specifics of the lens. Some brands need to be changed daily, while others can be re-used for up to two weeks.

Based on the diagram shown, what kind of lenses would Sumati need to make the telescope? (a) Concave lenses (b) Convex lenses (c) Bifocal lenses

Description : Based on the diagram shown, what kind of lenses would Sumati need to make the telescope? (a) Concave lenses (b) Convex lenses (c) Bifocal lenses

Last Answer : (b) Convex lenses

Which type of glass is used in making lenses and prisms? -Do You Know?

Description : Which type of glass is used in making lenses and prisms? -Do You Know?

Last Answer : answer:

The type of glass used in making lenses is

Description : The type of glass used in making lenses is

Last Answer : lead glass.

How many glasses of green tea can a person drink safely to assist weight loss?

Description : How many glasses of green tea can a person drink safely to assist weight loss?

Last Answer : It does have caffeine so it would probably depend on your sensitivity.

Do glasses make a person less attractive?

Description : Do glasses make a person less attractive?

Last Answer : People have different tastes to some you might look attractive and to others to might look less attractive. According to my personal experience, glasses make someone look gorgeous. This also depends with the ... wear glasses, then you are intelligent. For me, I find this as an awesome perspective.

How much glasses of water should a person drink in summer?

Description : How much glasses of water should a person drink in summer?

Last Answer : All doctors will tell you that you should always drink 8 to 10 glasses of water each day. During the summer months, if you are outdoors, exercising, spending time in the sun, you should always increase your ... 10 glasses of water per day. You shouldn't need more if you're not out in the sun.

A woman who lived in Germany during World War II wanted to cross the German/Swiss border in order to escape Nazi pursuers. The bridge which she is to cross is a half mile across, over a large canyon. Every three minutes a guard comes out of his bunker and checks if anyone is on the bridge. If a person is caught trying to escape German side to the Swiss side they are shot. If caught crossing the other direction without papers they are sent back. She knows that it takes at least five minutes to cross the bridge, in which time the guard will see her crossing and shoot her. How does she get across? -Riddles

Description : A woman who lived in Germany during World War II wanted to cross the German/Swiss border in order to escape Nazi pursuers. The bridge which she is to cross is a half mile across, over a large canyon. ... , in which time the guard will see her crossing and shoot her. How does she get across? -Riddles

Last Answer : She waits until the guard is inside his hut, then walks halfway across before starting to walk back. The guard, seing she has no papers, sends her 'back'.

On an IQ test consisting of 250 questions, Jasvinder answered 40% of the first 125 questions correctly. What per cent of the other 125 questions does he need to answer correctly for his grade on the entire exam to be 60%? (a) 75% (b) 80% (c) 60% (d) Cannot be determined (e) None of these

Description : On an IQ test consisting of 250 questions, Jasvinder answered 40% of the first 125 questions correctly. What per cent of the other 125 questions does he need to answer correctly for his grade on the entire exam to be 60%? (a) 75% (b) 80% (c) 60% (d) Cannot be determined (e) None of these

Last Answer : (b) 80%

Which of the following options correctly explains the term heat budget? (1) It is a mode of transfer of heat through matter by molecular activity. (2) It is the balance between incoming and outgoing radiation. (3) It is the radiation from the earth in the form of long waves. (4) It is the amount of heat which the surface of earth receives from the sun.

Description : Which of the following options correctly explains the term heat budget? (1) It is a mode of transfer of heat through matter by molecular activity. (2) It is the balance between incoming and outgoing radiation. ... waves. (4) It is the amount of heat which the surface of earth receives from the sun.

Last Answer : (2) It is the balance between in-coming and outgoing radiation. Explanation: Incoming heat being absorbed by the Earth, and outgoing heat escaping the Earth in the form of radiation are both ... each passing year. This balance between incoming and outgoing heat is known as Earth's heat budget.