College Physics
1st Edition
ISBN: 9781938168048
Author: Paul Peter Urone, OpenStax, Roger Hinrichs
Publisher: OpenStax
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Chapter 26, Problem 15PE
The far point of a myopic administrator is 50.0 cm. (a) What is the relaxed power of his eyes? (b) If he has the normal 8.00% ability to accommodate, what is the closest object he can see clearly?
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The far point of a myopic administrator is 50.0 cm. (a)What is the relaxed power of his eyes? (b) If he has thenormal 8.00% ability to accommodate, what is the closestobject he can see clearly?
The far point of a myopic administrator is 59.2 cm. (Assume a 2.0 cm distance between retina and lens.)
(a) What is the relaxed power of his eyes? (Give your answer to at least one decimal place.)
(b) If he has the normal 8.30% ability to accommodate, what is the closest object he can see clearly?
Suppose the accommodation limits for a nearsighted woman’s eyes are 20.0 cmand 90.0 cm. When wearing her glasses (which are placed 2.0 cm from her eyes) she can seefaraway objects clearly. At what minimum distance can she now see objects clearly?
Chapter 26 Solutions
College Physics
Ch. 26 - If the lens of a person’s eye is removed because...Ch. 26 - A cataract is cloudiness in the lens of the eye....Ch. 26 - When laser light is shone into a relaxed...Ch. 26 - How does the power of a dry contact lens compare...Ch. 26 - Why is your vision so blurry when you open your...Ch. 26 - It has become common to replace the...Ch. 26 - If the cornea is to be reshaped (this can be done...Ch. 26 - If there is a fixed percent uncertainty in LASIK...Ch. 26 - A person with presbyopia has lost some or all of...Ch. 26 - A pure red object on a black background seems to...
Ch. 26 - What is color constancy, and what are its...Ch. 26 - There are different types of color blindness...Ch. 26 - Propose a way to study the function of the rods...Ch. 26 - Geometric optics describes the interaction of...Ch. 26 - The image produced by the microscope in Figure...Ch. 26 - Why not have the objective at a microscope form a...Ch. 26 - What advantages do oil immersion objectives offer?Ch. 26 - How does the NA of a microscope compare wi1h the...Ch. 26 - If you want your microscope or telescope to...Ch. 26 - List the various types of aberrations. What causes...Ch. 26 - What is the power of the eye when viewing an...Ch. 26 - Calculate the power at the eye when viewing an...Ch. 26 - (a) The print in many books averages 3.50 mm in...Ch. 26 - Suppose a certain person’s visual acuity is such...Ch. 26 - People who do very detailed work close up, such as...Ch. 26 - What is the far point of a person whose eyes have...Ch. 26 - What is the near point of a person whose eyes have...Ch. 26 - (a) A laser vision correction reshaping the cornea...Ch. 26 - In a LASIK vision correction, the power of a...Ch. 26 - What was the previous far point of a patient who...Ch. 26 - A severely myopic patient has a far point of 5.00...Ch. 26 - A student’s eyes, while reading the blackboard,...Ch. 26 - The power of a physician’s eyes is 53.0 D while...Ch. 26 - A young woman with normal distant vision has a...Ch. 26 - The far point of a myopic administrator is 50.0...Ch. 26 - A very myopic man has afar point of 20.0 cm. What...Ch. 26 - Repeat the previous problem for eyeglasses held...Ch. 26 - A myopic person sees that her contact lens...Ch. 26 - Repeat the previous problem for glasses that are...Ch. 26 - The contact lens prescription for a mildly...Ch. 26 - A nearsighted man cannot see objects clearly...Ch. 26 - A mother sees that her child's contact lens...Ch. 26 - Repeat the previous problem for glasses that are...Ch. 26 - The contact lens prescription for a nearsighted...Ch. 26 - Unreasonable Results A boy has a near point of 50...Ch. 26 - A microscope with an overall magnification of 800...Ch. 26 - (a) What magnification is produced by a 0.150 cm...Ch. 26 - (a) Where does an object need to be placed...Ch. 26 - You switch from a 1.40NA60X oil immersion...Ch. 26 - An amoeba is 0.305 cm away from the 0.300 cm focal...Ch. 26 - You are using a standard microscope with a...Ch. 26 - Unreasonable Results Your friends show you an...Ch. 26 - What is the angular magnification of a telescope...Ch. 26 - Find the distance between the objective and...Ch. 26 - A large reflecting telescope has an objective...Ch. 26 - A small telescope has a concave mirror with a 2.00...Ch. 26 - A 7.5x binocular produces an angular magnification...Ch. 26 - Construct Your Own Problem Consider a telescope of...Ch. 26 - Integrated Concepts (a) During laser vision...
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- 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?arrow_forwardThe 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?arrow_forwardSuppose a certain person’s visual acuity is such that he can see objects clearly that form an image 4.00mhigh on his retina. What is the maximum distance at which he can read the 75.0-cm-high letters on the side of an airplane?arrow_forward
- For normal distant vision, the eye has a power of 50.0 D. What was the previous far point of a patient who had laser vision correction that reduced the power of her eye by 7.00 D, producing normal distant vision?arrow_forwardThe headlights of a car are 1.3 m apart. What is the maximum distance at which the eye can resolve these two headlights? Take the pupil diameter to be 0.40 cm.arrow_forwardTwo stars that are 109km apart are viewed by a telescope and found to be separated by an angle of 105 radians. If the eyepiece of the telescope has a focal length of 1.5 cm and the objective has a focal length of 3 meters, how far away are the stars from the observer?arrow_forward
- Exp1ain why an object in water always appears to be at a depth shallower than it actually is?arrow_forwardA spy satellite orbits Earth at a height of 180 km. What is the minimum diameter of the objective lens in a telescope that must be used to resolve columns of troops marching 2.0 m apart? Assume =550 nm.arrow_forwardA nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to a mirror in order to see what he is doing when he shaves?arrow_forward
- The power for normal distant vision is 50.0 D. A severely myopic patient has a far point of 5.00 cm. By how many diopters should the power of his eye be reduced in laser vision correction to obtain normal distant vision for him?arrow_forwardThe power for normal close vision is 54.0 D. In a vision-correction procedure, the power of a patient’s eye is increased by 3.00 D. Assuming that this produces normal close vision, what was the patient’s near point before the procedure?arrow_forwardA large reflecting telescope has an objective mirror with a 10.0-rn radius of curvature. What angular magnification does it produce when a 3.00 m-focal length eyepiece is used?arrow_forward
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