/*! 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} Problem 14 Give at least three reasons why ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 31: Problem 14

Give at least three reasons why reflecting telescopes are superior to refractors.

Short Answer

Expert verified
Reflecting telescopes are considered superior to refracting ones for several reasons. They avoid chromatic aberration since they use mirrors instead of lenses, allowing for clearer and more accurate images. They also have the capacity for larger apertures which increases their light-collecting capability. Lastly, reflecting telescopes are generally cheaper and easier to manufacture without causing imperfections compared to ones with lenses.

Step by step solution

01

Reflecting Telescope's Superiority Reason 1 - Absence of Chromatic Aberration

Reflecting telescopes use mirrors instead of lenses. This means they avoid chromatic aberration, which is a common problem with refracting telescopes. Chromatic aberration occurs in lenses because of the different wavelengths of light refracting differently when going through a lens. As reflecting telescopes don't have lenses, they don't have this problem.
02

Reflecting Telescope's Superiority Reason 2 - Aperture Size

Reflecting telescopes allow for a larger aperture size when compared to refracting telescopes. This is due to the difference in the way mirrors and lenses are constructed. A larger lens would be difficult to create without imperfections; moreover, it needs to be supported across the entire backside, making it challenging to maintain its perfect shape. On the other hand, mirrors in a reflecting telescope can be supported from the back, and larger mirrors can be built without imperfections.
03

Reflecting Telescope's Superiority Reason 3 - Cost

Generally, reflecting telescopes are less expensive to produce than refracting telescopes. This is because it's easier and cheaper to make a perfect mirror than it is to make a perfect lens. Therefore, one can get a high-quality reflecting telescope at a lower cost compared to a refracting telescope.

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

Show that identical objects placed equal distances on either side of the focal point of a concave mirror or converging lens produce images of equal size. Are the images of the same type?

The refractive index of the human cornea is about \(1.4 .\) If you can see clearly in air, why can't you see clearly underwater? Why do goggles help?

A double-convex lens with equal 28.5 -cm curvature radii is made from glass with refractive indices \(n_{\mathrm{red}}=1.512\) and \(n_{\text {violet }}=1.547 .\) If a point source of white light is located on the lens axis at \(75.0 \mathrm{cm}\) from the lens, over what distance will its visible image be smeared?

The maximum magnification of a simple magnifier occurs with the image at the 25 -cm near point. Show that the angular magnification is \(m=1+(25 \mathrm{cm} / \mathrm{f}),\) where \(f\) is the focal length.

A converging lens has focal length \(4.0 \mathrm{cm} .\) A 1.0 -cm-high arrow is located \(7.0 \mathrm{cm}\) from the lens with its lowest point \(5.0 \mathrm{mm}\) above the lens axis. Make a full-scale ray-tracing diagram to locate both ends of the image. Confirm using the lens equation.
See all solutions

Recommended explanations on Physics Textbooks

Magnetism

Read Explanation

Space Physics

Read Explanation

Waves Physics

Read Explanation

Further Mechanics and Thermal Physics

Read Explanation

Modern Physics

Read Explanation

Electricity and Magnetism

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.