5th Edition

ISBN: 9780134051796

Author: Walker

Publisher: YUZU

Concept explainers

Optics is the study of light in the field of physics. It refers to the study and properties of light. Optical phenomena can be classified into three categories: ray optics, wave optics, and quantum optics. Geometrical optics, also known as ray optics, is…

Converging Lens

Converging lens, also known as a convex lens, is thinner at the upper and lower edges and thicker at the center. The edges are curved outwards. This lens can converge a beam of parallel rays of light that is coming from outside and focus it on a point on…

Plano-Convex Lens

To understand the topic well we will first break down the name of the topic, ‘Plano Convex lens’ into three separate words and look at them individually.

Lateral Magnification

In very simple terms, the same object can be viewed in enlarged versions of itself, which we call magnification. To rephrase, magnification is the ability to enlarge the image of an object without physically altering its dimensions and structure. This pr…

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Textbook Question

Chapter 27, Problem 45PCE

A person’s prescription for his new bifocal eyeglasses calls for a refractive power of −0.0625 diopter in the distance-vision part and a power of +1.85 diopters in the close-vision part. Assuming the glasses rest 2.00 cm from his eyes and that the corrected near-point distance is 25.0 cm, determine the near and far points of this person’s uncorrected vision.

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Chapter 27, Problem 44PCE

Chapter 27, Problem 46PCE

Students have asked these similar questions

Kate has axial hypermetropia and requires contact lenses with an optical power of +2.90 D in order to clearly view objects 25 cm from her eyes. The maximum and minimum optical powers of Kate’s eyes are a ‘normal’ 54 D and 50 D respectively. (a) What is the maximum combined optical power of Kate’s eyes and her corrective lenses? (b) What is Kate’s lens-to-retina distance?

A person has a far-point of 30 m and a near-point of 43 cm. Assume a distance of 2.5 cm between the lens and retina.(a) Determine the maximum refractive power of the eye. (b) Determine the difference between the maximum and minimum refractive powers of the eye. Give your answer as a positive value.

All eyeglass lenses have chromatic aberration. This is usually expressed as dioptric spread. For a typical +6.0 D lens, the focusing power for red light is +5.90, the power for green light is +6.00 D, and the power for blue light is +6.10. This gives a dioptric spread of 0.20 diopter. Suppose a myopic person is observing a distant object through this lens, and the green light of the image is in perfect focus. Assume a distance s′ = 1.7000 cm. How far in front of or behind the retina is the point of sharp focus for red light? For blue light? (In practice, this amount of dioptric spread is fine; eyeglass wearers don’tnotice anything less than a spread of 0.30 diopter.)

Chapter 27 Solutions

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