Explanation If a lens is used as a magnifying glass, the object is placed between the focus and the optic centre and the image is formed at the near point N of the eye, which is 25 cm for a normal eye. For a relaxed eye, the object distance may be taken equal to that of the focal length of the lens f e . The magnification m e of the eyepiece is given by the expression, m e = N f e The length L of a telescope is the sum of the focal lengths of the objective f o and the eye piece f e . L = f o + f e The focal length of the objective can be calculated using the above expression and the magnificationM of the telescope is given by the ratio of the focal lengths of the objective and the eye piece. M = − f o f e Given: The maximum length of the telescope L = 50 cm Magnification of the eyepiece M = + 5 × Near point of the eye N = 25 cm Formula: m e = N f e L = f o + f e M = −

Physics: Principles with Applications, Books a la Carte Edition & Modified Mastering Physics with Pearson eText -- ValuePack Access Card Package

1st Edition

ISBN: 9780321974990

Author: Douglas C. Giancoli

Publisher: PEARSON

See similar textbooks

Concept explainers

Ray Optics

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…

Videos

Question

Chapter 25, Problem 40P

To determine

The maximum achievable angular magnification for a telescope designed to be hand held.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 25, Problem 39P

Chapter 25, Problem 41P

Students have asked these similar questions

A pendulum has a 0.4-m-long cord and is given a tangential velocity of 0.2 m/s toward the vertical from a position 0 = 0.3 rad. Part A Determine the equation which describes the angular motion. Express your answer in terms of the variable t. Express coefficients in radians to three significant figures. ΜΕ ΑΣΦ vec (t)=0.3 cos (4.95t) + 0.101 sin (4.95t) Submit Previous Answers Request Answer × Incorrect; Try Again; 6 attempts remaining

Part A ■Review The uniform 150-lb stone (rectangular block) is being turned over on its side by pulling the vertical cable slowly upward until the stone begins to tip. (Figure 1) If it then falls freely (T = 0) from an essentially balanced at-rest position, determine the speed at which the corner A strikes the pad at B. The stone does not slip at its corner C as it falls. Suppose that height of the stone is L = 1.2 ft. Express your answer to three significant figures and include the appropriate units. ? ft VA 10.76 S Submit Previous Answers Request Answer × Incorrect; Try Again; 6 attempts remaining

Consider the circuit shown in the figure. The battery has emf ε = 69 volts and negligible internal resistance. The inductance is L = 0.4 H and the resistances are R 1 = 12 Ω and R 2 = 9.0 Ω. Initially the switch S is open and no currents flow. Then the switch is closed. After leaving the switch closed for a very long time, it is opened again. Just after it is opened, what is the current in R 1?

Chapter 25 Solutions

Physics: Principles with Applications, Books a la Carte Edition & Modified Mastering Physics with Pearson eText -- ValuePack Access Card Package

Ch. 25 - Prob. 1OQ Ch. 25 - Prob. 2OQ Ch. 25 - Prob. 1Q Ch. 25 - Prob. 2Q Ch. 25 - Prob. 3Q Ch. 25 - Prob. 4Q Ch. 25 - Will a nearsighted person who wears corrective...Ch. 25 - Prob. 6Q Ch. 25 - Prob. 7Q Ch. 25 - Prob. 8Q

Ch. 25 - Prob. 9Q Ch. 25 - Prob. 10Q Ch. 25 - Prob. 11Q Ch. 25 - Prob. 12Q Ch. 25 - Explain why chromatic aberration occurs for thin...Ch. 25 - Prob. 14Q Ch. 25 - Prob. 15Q Ch. 25 - Prob. 16Q Ch. 25 - Prob. 17Q Ch. 25 - Prob. 18Q Ch. 25 - Prob. 19Q Ch. 25 - Prob. 20Q Ch. 25 - The image of a nearby object formed by a camera...Ch. 25 - Prob. 2MCQ Ch. 25 - Prob. 3MCQ Ch. 25 - Prob. 4MCQ Ch. 25 - Prob. 5MCQ Ch. 25 - Prob. 6MCQ Ch. 25 - Prob. 7MCQ Ch. 25 - Prob. 8MCQ Ch. 25 - Prob. 9MCQ Ch. 25 - Prob. 10MCQ Ch. 25 - Prob. 11MCQ Ch. 25 - Prob. 12MCQ Ch. 25 - Prob. 13MCQ Ch. 25 - Prob. 1P Ch. 25 - Prob. 2P Ch. 25 - Prob. 3P Ch. 25 - Prob. 4P Ch. 25 - Prob. 5P Ch. 25 - Prob. 6P Ch. 25 - Prob. 7P Ch. 25 - Prob. 8P Ch. 25 - If a 135-mm telephoto lens is designed to cover...Ch. 25 - Prob. 10P Ch. 25 - Prob. 11P Ch. 25 - A person struggles to read by holding a book at...Ch. 25 - Prob. 13P Ch. 25 - An eye is corrected by a - 5.50-D lens, 2.0 cm...Ch. 25 - Prob. 15P Ch. 25 - Prob. 16P Ch. 25 - A person has a far point of 14 cm. What power...Ch. 25 - Prob. 18P Ch. 25 - Prob. 19P Ch. 25 - Prob. 20P Ch. 25 - Prob. 21P Ch. 25 - Prob. 22P Ch. 25 - Prob. 23P Ch. 25 - Prob. 24P Ch. 25 - Prob. 25P Ch. 25 - Prob. 26P Ch. 25 - Prob. 27P Ch. 25 - A magnifying glass with a focal length of 9.2 cm...Ch. 25 - Prob. 29P Ch. 25 - Prob. 30P Ch. 25 - Prob. 31P Ch. 25 - Prob. 32P Ch. 25 - A 7.0x binocular has 3.5-cm-focal-length...Ch. 25 - Prob. 34P Ch. 25 - 35. (II) An astronomical telescope has its two...Ch. 25 - 36. (II) A Galilean telescope adjusted for a...Ch. 25 - Prob. 37P Ch. 25 - Prob. 38P Ch. 25 - Prob. 39P Ch. 25 - Prob. 40P Ch. 25 - Prob. 41P Ch. 25 - Prob. 42P Ch. 25 - Prob. 43P Ch. 25 - Prob. 44P Ch. 25 - Prob. 45P Ch. 25 - A microscope has a 14.0x eyepiece and a 60.0x...Ch. 25 - Repeat Problem 46 assuming that the final image is...Ch. 25 - Prob. 48P Ch. 25 - The eyepiece of a compound microscope has a focal...Ch. 25 - Prob. 50P Ch. 25 - An achromatic lens is made of two very thin...Ch. 25 - Prob. 52P Ch. 25 - Prob. 53P Ch. 25 - Prob. 54P Ch. 25 - Two stars 18 light-years away are barely resolved...Ch. 25 - Prob. 56P Ch. 25 - Prob. 57P Ch. 25 - Prob. 58P Ch. 25 - Prob. 59P Ch. 25 - Prob. 60P Ch. 25 - Prob. 61P Ch. 25 - Prob. 62P Ch. 25 - Prob. 63P Ch. 25 - Prob. 64GP Ch. 25 - Prob. 65GP Ch. 25 - Prob. 66GP Ch. 25 - Prob. 67GP Ch. 25 - Prob. 68GP Ch. 25 - Prob. 69GP Ch. 25 - Prob. 70GP Ch. 25 - Prob. 71GP Ch. 25 - Prob. 72GP Ch. 25 - Prob. 73GP Ch. 25 - Prob. 74GP Ch. 25 - Prob. 75GP Ch. 25 - Prob. 76GP Ch. 25 - Prob. 77GP Ch. 25 - Prob. 78GP Ch. 25 - Prob. 79GP Ch. 25 - Prob. 80GP Ch. 25 - Prob. 81GP Ch. 25 - Prob. 82GP Ch. 25 - Prob. 83GP Ch. 25 - Prob. 84GP Ch. 25 - Prob. 85GP Ch. 25 - Prob. 86GP Ch. 25 - You want to design a spy satellite to photograph...Ch. 25 - Given two 12-cm-focal-length lenses, you attempt...Ch. 25 - Prob. 89GP

Additional Science Textbook Solutions

Find more solutions based on key concepts

Foods packed in plastic for microwaving are a. dehydrated. b. freeze-dried. c. packaged aseptically. d. commerc...

Microbiology: An Introduction

EVOLUTION CONNECTION Describe how gene flow, genetic drift, and natural sclection all can influence macroevolut...

Campbell Biology (11th Edition)

6. A construction worker with a weight of 850 N stands on a roof that is sloped at 20°. What is the magnitude...

Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)

10.71 Identify each of the following as an acid or a base: (10.1) H2SO4 RbOH Ca(OH)2 HI ...

Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)

What terms are used to describe organisms whose growth pH optimum is very high? Very low?

Brock Biology of Microorganisms (15th Edition)

Calculate the molarity of each solution. a. 0.127 mol of sucrose in 655 mL of solution b. 0.205 mol of KNo3 in ...

Introductory Chemistry (6th Edition)

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.