Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 6, Problem 11Q
To determine
The theory of reflecting telescope with the aid of a diagram and the four different ways in which an astronomer can access the focal plane.
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Explain why this equation gives the correct focal length. Write a paragraph of text with no derivations or math, text only.
Chapter 6 Solutions
Universe: Stars And Galaxies
Ch. 6 - Prob. 1QCh. 6 - Prob. 2QCh. 6 - Prob. 3QCh. 6 - Prob. 4QCh. 6 - Prob. 5QCh. 6 - Prob. 6QCh. 6 - Prob. 7QCh. 6 - Prob. 8QCh. 6 - Prob. 9QCh. 6 - Prob. 10Q
Ch. 6 - Prob. 11QCh. 6 - Prob. 12QCh. 6 - Prob. 13QCh. 6 - Prob. 14QCh. 6 - Prob. 15QCh. 6 - Prob. 16QCh. 6 - Prob. 17QCh. 6 - Prob. 18QCh. 6 - Prob. 19QCh. 6 - Prob. 20QCh. 6 - Prob. 21QCh. 6 - Prob. 22QCh. 6 - Prob. 23QCh. 6 - Prob. 24QCh. 6 - Prob. 25QCh. 6 - Prob. 26QCh. 6 - Prob. 27QCh. 6 - Prob. 28QCh. 6 - Prob. 29QCh. 6 - Prob. 30QCh. 6 - Prob. 31QCh. 6 - Prob. 32QCh. 6 - Prob. 33QCh. 6 - Prob. 34QCh. 6 - Prob. 35QCh. 6 - Prob. 36QCh. 6 - Prob. 37QCh. 6 - Prob. 38QCh. 6 - Prob. 39QCh. 6 - Prob. 40QCh. 6 - Prob. 41QCh. 6 - Prob. 42QCh. 6 - Prob. 43QCh. 6 - Prob. 44QCh. 6 - Prob. 45Q
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- Galileo’s telescopes were not of high quality by modern standards. He was able to see the moons of Jupiter, but he never reported seeing features on Mars. Use the small-angle formula to find the maximum angular diameter of Mars when it is closest to Earth. How does that compare with the maximum diameter of Jupiter? (Note: Useful data can be found in Appendix Table A-10.)arrow_forwardFormula:D = 1/F *1 – meter; 40 – inches; 100 – centimeters; 1,000 – millimeters DON'T ANSWER A, B, AND C. ANSWER 1, 2, 3, AND 4 a. What is the power of a lens with 16cm focal length? (DO NOT ANSWER)b. In performing Retinoscopy, the working distance is 20 inches. What is the working distance lens? (DO NOT ANSWER)c. What is the focal length of a +2.00D? (In inches and in cm) (DO NOT ANSWER) Also answer this Computation: (ANSWER 1, 2, 3 AND 4 BELOW AND NOT THE QUESTIONS ABOVE)1. 13 inches 2. 50 cm 3. +2.50D4. +1.25Darrow_forwardDefine theterm power of a lens. In what unit it is expressed?arrow_forward
- Regarding image formation frim spherical mirrors: What apeture size would guve the best possible focus of the image? Why is this size apeture impractical?arrow_forwardDescribe which type of lens is needed to correct for farsightedness. Sketch a small picture to illustrate the effect of this lens?arrow_forwardQuestion 2 pleasearrow_forward
- Determine the type of lenses of the following:arrow_forwardDefine magnifying power of a telescope. Write its expression.A small telescope has an objective lens of focal length 150cm and an eye piece of focal length 5cm. If this telescope is used to view a 100m high tower 3km away, find the height of the final image when it is formed 25cm away from the eye piece.arrow_forwardPlease complete the drawings, if necessary, based on the name/type of diagrams named on top and then determine the focal length for each. This is the complete question.arrow_forward
- Solve and show the solutions by I. Analytical Method - using Lens/Mirror Equation and II. by Graphical Method - Ray Tracing (Indicate your own scale). An object O of a certain height is placed at a distance of 10 mm away from a convex lens and has a focal length of 15 mm. (Round off your final answer up to 2 decimal places.) 1. Where will the image I of this object appear? 2. Determine the magnification. (Round off your final answer up to 2 decimal places.) 3. Describe the image I according to its: a.) size b.) position c.) naturearrow_forwardOptics: make a list of the common aberrations: 1-2 sentence description of each plus a discussion of common causes and solutions.arrow_forwardWhat is the magnification of an astronomical telescope whose objective lens has a focal length of 78 cm and whose eyepiece has a focal length of 2.8 cm? The telescope is set so the image of the eyepiece is at infinity (so the viewer’s eye is “relaxed”). What is the overall length of the telescope? Sketch the situation, defining all your variables Please sketch it, this is most important.arrow_forward
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