/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q18PE A myopic person sees that her co... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 26: Q18PE (page 956)

A myopic person sees that her contact lens prescription is 鈥�4.00 D. What is her far point?

Short Answer

Expert verified

The far point of the person is at 25.0 cm.

Step by step solution

01

Step 1:The myopic view

Myopia is a vision condition in which visual pictures focus in front of the retina of the eye, creating vision problems of distant objects.

02

Given information and Formula to be used

The power of contact lens prescription for a myopic person is P = -4.00 D

The power needed P to correct the vision can be obtained using the expression,

  1. P=1d0+1di鈥︹赌︹赌︹赌︹赌︹赌︹赌�..(1)
03

What is her far point?

Rearrange the equation (1) to solve for the distance between the far point and the person's eyes as follows,

1d0=P-1di=50D-4.00D-10.02m=-4.00D1m-11D=-4.00m-1

This gives,

d0=1-4.00m-1100cm1m=-25.0cm

Therefore, the far point is at 25.0 cm.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A small telescope has a concave mirror with a 2.00 mradius of curvature for its objective. Its eyepiece is a 4.00 cm focal length lens. (a) What is the telescope鈥檚 angular magnification? (b) What angle is subtended by a 25,000 kmdiameter sunspot? (c) What is the angle of its telescopic image?

List the various types of aberrations. What causes them and how can each be reduced?

(a) What magnification is produced by a 0.150 cm focal length microscope objective that is 0.155 cm from the object being viewed?

(b) What is the overall magnification if an 8脳 eyepiece (one that produces a magnification of 8.00 ) is used?

Unless otherwise stated, the lens-to-retina distance is 2.00 cm.

What is the near point of a person whose eyes have an accommodated power of 53.5 D?

A student鈥檚 eyes, while reading the blackboard, have a power of 51.0 D. How far is the board from his eyes?
See all solutions

Recommended explanations on Physics Textbooks

Kinematics Physics

Read Explanation

Electricity

Read Explanation

Electromagnetism

Read Explanation

Radiation

Read Explanation

Physics of Motion

Read Explanation

Waves Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.