Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 34: Q. 27 (page 991)

Find the focal length of the glass lens in FIGUREEX34.27.

Short Answer

Expert verified

The focal length of glass lens is-40cm.

Step by step solution

01

Figure for focal length of lens

Figure is,

For surfaces convex toward the object, the radius of curvatureRis positive.

For surfaces that are concave toward the object, the radius of curvature Ris negative.

02

Calculation of focal length of lens

Substitute numerical values:If the object is on the left, the lens's initial surface is planar, which we can think of as a part of a sphere with ,R=-40cm

Withlocalid="1649147855071" R=40cm, the second surface serves as a concave surface.

The focal length of the lens is ,

1f=(n-1)1R1-1R2

Substitute the following numerical values:

1f=(1.50-1)1-40cm-1+40cm

1f=-140cmR=-40cm

f=-40cm

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

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

II A costume jewelry pendant made of cubic zirconia is submerged in oil. A light ray strikes one face of the zirconia crystal at an angle of incidence of25°. Once inside, what is the ray's angle with respect to the face of the crystal?

A student has built a 15−cm-long pinhole camera for a science fair project. She wants to photograph her 180−cm-tall friend and have the image on the film be0.5cm high. How far should the front of the camera be from her friend?

A 1.0-cm-tall object is 10cmin front of a converging lens that has a30cmfocal length.
aUse ray tracing to find the position and height of the image. To do this accurately, use a ruler or paper with a grid. Determine the image distance and image height by making measurements on your diagram.
bCalculate the image position and height. Compare with your ray-tracing answers in part a.

You are looking at the image of a pencil in a mirror, as shown in FIGURE Q34.2.

a. What happens to the image if the top half of the mirror, down to the midpoint, is covered with a piece of cardboard? Explain.

b. What happens to the image if the bottom half of the mirror is covered with a piece of cardboard? Explain.

A laser beam in air is incident on a liquid at an angle of 53∘ with respect to the normal. The laser beam's angle in the liquid is 35∘. What is the liquid's index of refraction?
See all solutions

Recommended explanations on Physics Textbooks

Particle Model of Matter

Read Explanation

Turning Points in Physics

Read Explanation

Magnetism

Read Explanation

Astrophysics

Read Explanation

Classical Mechanics

Read Explanation

Magnetism and Electromagnetic Induction

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.

Sign-up for free