Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.70 m.
Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.70 m.
Part A
When she wears +2.0 D reading glasses, what is her near point?
Part B
What is her far point when she wears glasses?
Homework Answers
A)
Using lens formula,
1/f = 1/v - 1/u
2 = - 1/0.7 - 1/u
u = 0.29 m
B)
1/f = 1/v - 1/u
2 = 1/∞ - 1/u
u = 0.5 m
Comment in case any doubt please rate my answer.....
Add Answer to:
Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.70 m.
Ill ReviewI Constants Periodic Table PartA Rachel has good distant vision but has a touch of...
Ill ReviewI Constants Periodic Table PartA Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.50 m, When she wears +2.0 D reading glasses, what is her near point? Express your answer with the appropriate units Value Units Submit Request Answer ▼ Part B What is her far point when she wears glasses? Express your answer with the appropriate units 四? aValue Units Submit Request Answer
A person with presbyopia has a near point of 65 cm. This person wears glasses to...
A person with presbyopia has a near point of 65 cm. This person wears glasses to correct their vision such that they can comfortably read the screen of their mobile phone when it is held 25 cm from their eyes. If this person wears their glasses such that they sit 1.4 cm from their eye, what is the optical power of the corrective lenses in their glasses? (to 2 s.f and in D)
Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near...
Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near point is 12 cm . Her glasses allow her to view distant objects with her eye relaxed. With her glasses on, what is the closest object on which she can focus?
Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near...
Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near point is 18 cm . Her glasses allow her to view distant objects with her eye relaxed. With her glasses on, what is the closest object on which she can focus? Express your answer with the appropriate units.
A person’s vision is myopic; without correction, the far point of her eye is a modest 40 cm. This...
A person’s vision is myopic; without correction, the far point of her eye is a modest 40 cm. This does come with a benefit of having a near point of 8.0 cm. If she wears a lens that correct her distance vision, what power lens is required? With this lens in place, what is her near point?
Your physics study partner is nearsighted. She has a near point of 50.0 cm from her...
Your physics study partner is nearsighted. She has a near point of 50.0 cm from her eyes and she wears eyeglasses designed to allow her to read a newspaper held at a distance of 20.0 cm from her eyes. Determine the focal length of her glasses for each of the following cases. (a) She wears her eyeglasses 1.80 cm from her eyes. cm (b) She wears her eyeglasses 2.80 cm from her eyes. cm
1. Susan is quite nearsighted; without her glasses, her far point is 52 cm and her...
1. Susan is quite nearsighted; without her glasses, her far point is 52 cm and her near point is 16 cm. Her glasses allow her to view distant objects with her eye relaxed. (a) Are the lenses of her glasses converging or diverging? (b) Find the focal length of the lenses of her glasses. (c) Find her near point while wearing her glasses. (d) Find the minimum power of the lens she should use as a magnifier in order to...
People commonly use contact lenses to correct their vision. A patient has a near point of...
People commonly use contact lenses to correct their vision. A patient has a near point of 150 cm and, to correct this, wears contact lenses with a focal length of 50 cm Part A What is the refractive power of her contact lenses? Part B How close can she hold a newspaper and still read it while wearing her contact lenses? Part C The indices of refraction for her contact lens, cornea, and the fluid behind her cornea are 1.6,...
(1.) Nearsightedness (a.) A nearsighted person has a far point that is 323 cm from her...
(1.) Nearsightedness (a.) A nearsighted person has a far point that is 323 cm from her eye. Her lens in a pair of glasses is 2 cm in front of her eye. What focal length is required to cast the image of a far-away object at her far point? (b.) If these glasses are used to view an object 525 cm from her eye, where do her glasses cast the image? In both cases, quote your distance as measured from...
Velma is extremely nearsighted, and has difficulty seeing anything which is further away than 1.5 meters...
Velma is extremely nearsighted, and has difficulty seeing anything which is further away than 1.5 meters from her face if she isn't wearing her glasses. Dexter also wears glasses, which correct his farsightedness; he can only see objects clearly when they are more than 50 cm from his eyes. Assuming that each of them wears glasses which are 1.5 cm from their eyes, and that a person with normal vision has a near point of 25 cm and a far...
Ill ReviewI Constants Periodic Table PartA Rachel has good distant vision but has a touch of presbyopia. Her near point is 0.50 m, When she wears +2.0 D reading glasses, what is her near point? Express your answer with the appropriate units Value Units Submit Request Answer ▼ Part B What is her far point when she wears glasses? Express your answer with the appropriate units 四? aValue Units Submit Request Answer
Susan is quite nearsighted; without her glasses, her far point is 38 cm and her near point is 18 cm . Her glasses allow her to view distant objects with her eye relaxed. With her glasses on, what is the closest object on which she can focus? Express your answer with the appropriate units.
Your physics study partner is nearsighted. She has a near point of 50.0 cm from her eyes and she wears eyeglasses designed to allow her to read a newspaper held at a distance of 20.0 cm from her eyes. Determine the focal length of her glasses for each of the following cases. (a) She wears her eyeglasses 1.80 cm from her eyes. cm (b) She wears her eyeglasses 2.80 cm from her eyes. cm
(1.) Nearsightedness (a.) A nearsighted person has a far point that is 323 cm from her eye. Her lens in a pair of glasses is 2 cm in front of her eye. What focal length is required to cast the image of a far-away object at her far point? (b.) If these glasses are used to view an object 525 cm from her eye, where do her glasses cast the image? In both cases, quote your distance as measured from...
Most questions answered within 3 hours.
-
2) A 9 volt battery is connected to a parallel plate capacitor
with an initial capacitance...
asked 14 minutes ago -
Assume that the situation can be expressed as a linear cost
function. Find the cost function....
asked 13 minutes ago -
Prince Equipment has to decide whether to obtain $1,000,000 of
financing by: (1) selling common stock...
asked 1 hour ago -
(Sort ArrayList) Write the following method that sorts an
ArrayList: public static > void sort(ArrayList list)...
asked 59 minutes ago -
The terms electrical and electronic have similar but
different meanings which of the following statement is...
asked 1 hour ago -
You wish to test the claim that the mean GPA of night students
is than 2.5...
asked 2 hours ago -
A soft drink machine outputs a mean of 25 ounces per cup. The
machine's output is...
asked 3 hours ago -
Ross Co., Westerfield, Inc., and Jordan Company announced a new
agreement to market their respective products...
asked 2 hours ago -
What is the distance run by a runner 50m/hr and
60m/hr?
asked 3 hours ago -
Write a descendant selector rule that affects the <em>
element that is contained within the
<p>...
asked 3 hours ago -
The management of an electrical manufacturing plant determined
that the mean life of their 10 watt...
asked 3 hours ago -
On January 1, Year 1, Prairie Enterprises purchased a parcel of
land for $13,100 cash. At...
asked 4 hours ago