2. Let us assume that a given hyperopic eye has a near point at 200 cm. The desired lens is to allow the eye to view objects at 25 cm. Find focal length and power of the lens required to fix this problem.

2. Let us assume that a given hyperopic eye has a near point at 200 cm. The desired lens is to allow the eye to view objects at 25 cm. Find focal length and power of the lens required to fix this problem.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter26: Vision And Optical Instruments

Section: Chapter Questions

Problem 33PE: What is the angular magnification of a telescope that has a 100 cm local length objective and a 2.50...

See similar textbooks

Related questions

Q: Sam purchases +2.0-D eyeglasses which correct his faulty vision to put his near point at 25 cm.…

A: Power (p) = +2D Near point = 25cm Distance b/w lens and the eyes = 2cm

Q: 29. • A converging lens with a focal length of 7.00 cm forms an image of a 4.00-mm-tall real object…

A: Given data The focal length of the converging lens is f = 7 cm The object's height is ho = 4 mm =…

Q: 6. An object is placed 36 cm to the left of a converging lens. The resulting image is five times the…

A: Given: distance of object, u = - 36 cm magnification, m = - 5 real image

Q: How far from a 25.0 -mm-focal-length lens must an object be placed if its image is to be magnified…

A: Given Focal length of a lens = 25.0 mm We have to calculate the object distance when (i)…

Q: Question 31 You want to make a lens with a diameter of 0.7 cm such that light from an object 4.6 cm…

Q: What kind of lens is the lens of the eye? Where does the normal eye form the image? What kind of…

A: Most popular lens are biconvex and biconcave lens

Q: An object is placed 9.5cm to the left of a lens of unknown focal length. The image forms 15.4 cm to…

Q: 2. An object is placed 8.0 cm to the left of a diverging lens of focal length -6.00 cm. A converging…

Q: 1. If the focal length of the eye (cornea & lens together) is 5.5 cm, then its power is (a) 0.1818 D…

Q: 2. (a) Using table data presented in the text, calculate the focusing power Fmin of the crystalline…

A: The minimum optical power of the crystalline lens is

Q: You place a +25 cm focal length convex lens at a distance of 50 cm in front of a concave lens with a…

A: The location of the final image is on the same side of the object.

Q: A stamp collector wants to magnify an image by 4.0 when the stamp is 3.5 cm from the lens. What…

A: Given Information:- Magnification of the image is m=4.0 Distance of the stamp from the lens is…

Q: You want to examine the hairy details of your favorite pet caterpillar, using a lens of focal length…

A: Given : Focal length (f) = 9.7 cm Near point (n) = 25 cm

Q: 3. A prescription for a corrective lens calls for +3.50 diopters. The lens maker grinds the lens…

A: Given: The power of the lens is +3.5 D. The refractive index of the glass is 1.56. The radius of…

Q: 12. Two lenses with focal lengths f, = +5.0 cm and f, = + 10.0 cm are located 5.0 cm apart. If an…

A: Focal length of first lens (f1) = 5 cm Focal length of second lens (f2) = 10 cm Distance between the…

Q: 11) Two converging lenses are used to form a compound microscope, the first lens (object lens) has…

A: To see the nature of final image we have to draw the ray diagram of microscope and we will see how…

Q: A 4.0 cmcm -tall candle flame is 2.0 mm from a wall. You happen to have a lens with a focal length…

A: Height of candle = 4 cm = 0.04 m Distance from the wall = 2 m Focal length , f = 42 cm = 0.42 m To…

Q: A prescription for reading glasses has a power of P = 2.24 D. What is the focal length of the…

Q: Let us assume that a given hyperopic eye has a near point at 256 cm. The desired lens is to allow…

Q: If you view an object with binoculars, and the image appears right side up and a dozen times larger,…

A: . magnification of image is given by height of image divided by height of object if the image…

Q: The near point of a person's eye is 60.8 cm. (Neglect the distance from the lens to the eye.) (a) To…

Q: You make the lenses shown in Fig.2 from flat glass disks (n = 1, 5) using a machine capable of…

A: Given:- You make the lenses from flat glass disks with refractive index (n = 1.5) a radius of…

Q: 1: An object 3cm high is located 12cm in front of a lens of 3cm focal length, and a lens of -4cm…

A: Height of the object is ho = 3 cm Distance of the object is u = 12 cm Focal length of the first lens…

Q: (5) A compound microscope is made with an objective lens (fo = 1.000 cm) and an eyepiece (fe = 0.500…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: 9. Give are two lenses with effective focal lengths of 60 and 40 mm in air. They are separated 60 mm…

Q: Problem 4: The human eye can be approximated by a two-lens optical system. Light enters the eye and…

A: Given, Focal length of cornea,f1=4.1666 cm Focal length of crystalline lens,f2=16 cm Distance of…

Q: A prescription for reading glasses has a power of P = 2.42 D. What is the focal length of the…

A: Given data: Power (P) = 2.42 D Required: Focal length in cm

Q: : Assume the lens-to-retina distance of the human eye is 2.00 cm. Calculate the power P, in…

A: Given: The distance between lens and retina is 2 cm. The distance of the object is 4.5 m =450 cm…

Q: 130) A converging lens has a focal length of 10.0 cm. Locate the object if a real image is located…

A: Given f = 10 cm

Q: 2. An object is placed 50.cm in front of a converging lens and then 15.5cm in front of a diverging…

Q: 2. Let us assume that a given hyperopic eye has a near point at 200 cm. The desired lens is to allow…

A: The focal length of the desired lens is given by,

Q: For a greater magnification, should a lens with a larger or smaller focal length be selected?…

A: For greater magnification, should a lens with a larger or smaller focal length be selected.

Q: 3. Figure 2.2 is a photograph of an eyeball with the image of a boy in a doorway. Is the eye here…

A: The eye her act as Convex mirror. If it was acting as a lens, then the object would have to be…

Q: 11. Consider two thin lenses (one converging and one diverging) aligned on a common axis, running…

Q: 7) Both lenses of a compound microscope have focal lengths of 1 cm. The barrel length. 26.95 cm.…

A: Given value--- focal length of both lenses = 1 cm. barrel length = 26.95 cm. object distance = 1.04…

Q: 11. A simple telescope, consisting of an objective of focal length 60 cm and a single eye lens of…

Q: 2. Show that the minimum distance between a real object and its real image given by a convergent…

A: Given, A convergent lens which has focal length f

Q: 6. A thin converging lens of focal length f =+12.0 cm is separated from a thin diverging lens by a…

A: NOTE- As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: 21.17 An overhead projector with a lens of 35.6 cm focal length is used to throw an image on a…

A: By lens formula 1/v - 1/u = 1/f 1/u = 1/v - 1/f u = fv/(f-v) = (35.6)×(180) / (35.6-180) u =…

Q: You are designing contact lenses for someone whose near point is 91cm. What focal length should you…

A: Given, Object distance, Image distance,

Q: A patient enters an eye doctor’s office and finds the doctor tells him that his near point is 10.0…

A: Given, near point=10cm far point=125cm eye lens distance from the retina v=2.00cm

Q: 7. An object is placed 50.0 cm in front of a lens of focal length f = 22.0 cm a. What is the image…

A: Given Data The object distance is given as u = 50 cm The focal length of the lens is f = 22 cm. a)…

Q: A person with a near point of 78 cm and a far point of 180 cm requires bifocal lenses. (a) Determine…

A: Given Near point for a person = 78 cm Far point = 180 cm We have to determine (a) focal length of…

Q: . You want a focal length of 6.5 cm, and the radius of curvature of the first side of the lens is…

Q: 1. When two lenses are used in combination, the first one forms an image that then serves as the…

A: Given data, Since it is not explicitly mentioned, let us assume the first lens is converging and the…

Question

can you use the formulas from the picture please?

2. Let us assume that a given hyperopic eye has a near point at 200 cm. The desired lens is to
allow the eye to view objects at 25 cm. Find focal length and power of the lens required to fix this
problem.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A particular patients eyes are unable to focus on objects closer than 35.0 cm and corrective lenses are to be prescribed so that the patient can focus on objects 20.0 cm from their eyes. (a) Is the patient nearsighted or farsighted? (b) If contact lenses are to lie prescribed, determine the required lens power. (c) If eyeglasses are to be prescribed instead and the distance between the eyes and the lenses is 2.00 cm, determine the power of the required corrective lenses. (d) Are the required lenses converging or diverging?
. (a) In a camera equipped with a 50-mm focal-length lens, the maximum distance that the lens can be from the film is 60 mm. What is the smallest distance an object can be from the camera if its image on the film is to be in focus? What is the magnification? (b) An extension tube is added between the lens and the camera body so that the lens can be positioned 100 mm from film. How close can the object be now? What is the magnification?
Show that the magnification of a thin lens is given by M = di/do (Eq. 38.6). Hint: Follow the derivation of the lens makers equation (page 1233) and start with a thick lens.
(a) What is the maximum angular magnification of an eyeglass lens having a focal length of 18.0 cm when used as a simple magnifier? (b) What is the magnification of this lens when the eye is relaxed?
The contact-lens prescription for a nearsighted person is —4.00 D and the person has a far point of 22.5 cm. What is the power of the tear layer between the cornea and the lens if the correction is ideal, taking the tear layer into account?
A particular patients eyes are unable to focus on objects closer than 35.0 cm and corrective lenses are to be prescribed so that the patient can focus on objects 20.0 cm from their eyes. (a) Is the patient nearsighted or farsighted? (b) If contact lenses are to lie prescribed, determine the required lens power. (c) If eyeglasses are to be prescribed instead and the distance between the eyes and the lenses is 2.00 cm, determine the power of the required corrective lenses. (d) Are the required lenses converging or diverging?
(a) Where does an object need to be placed relative to a microscope for its 0.500 cm focal leng1h objective to produce a magnification of 400? (b) Where should the 5.00 cm focal length eyepiece be placed to produce a further fourfold (4.00) magnification?
The accommodation limits for a nearsighted persons eyes are 18.0 cm and 80.0 cm. When he wears his glasses, he can see faraway objects clearly. At what minimum distance is he able to see objects clearly?
(a) What is the maximum angular magnification of an eyeglass lens having a focal length of 18.0 cm when used as a simple magnifier? (b) What is the magnification of this lens when the eye is relaxed?
The contact lens prescription for a mildly farsighted person is 0.750 D, and the person has a near point of 29.0 cm. What is the power of the tear layer between the cornea and the lens if the correction is ideal, taking the tear layer into account?
A 7.5x binocular produces an angular magnification of 7.50, acting like a telescope. (Mirrors are used to make the image upright.) If the binoculars have objective lenses with a 75.0 cm focal length, what is the focal length of the eyepiece lenses?
What is the angular magnification of a telescope that has a 100 cm local length objective and a 2.50 cm focal length eyepiece?