Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Question
Chapter 5, Problem 1P
To determine
To compare the light gathering power of telescope with a 10 centimetre diameter mirror to that of the human eye.
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Chapter 5 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
Ch. 5 - What is light-gathering power? How does it affect...Ch. 5 - Prob. 2QFRCh. 5 - Prob. 3QFRCh. 5 - Prob. 4QFRCh. 5 - What is the purpose of an interferometer?Ch. 5 - Prob. 6QFRCh. 5 - Why do astronomers put X ray observatories in...Ch. 5 - Prob. 8QFRCh. 5 - Prob. 9QFRCh. 5 - Prob. 10QFR
Ch. 5 - Apart from magnification, how do binoculars help...Ch. 5 - Prob. 2TQCh. 5 - Prob. 3TQCh. 5 - Is it better to have a telescope with a high...Ch. 5 - Prob. 5TQCh. 5 - Prob. 6TQCh. 5 - Prob. 7TQCh. 5 - Prob. 8TQCh. 5 - Prob. 1PCh. 5 - Estimate your eyes resolving power by drawing two...Ch. 5 - Can the unaided human eye resolve a crater on the...Ch. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 1TYCh. 5 - Prob. 2TYCh. 5 - Prob. 3TYCh. 5 - Prob. 4TYCh. 5 - Prob. 5TYCh. 5 - Prob. 6TYCh. 5 - Prob. 7TYCh. 5 - Prob. 8TYCh. 5 - Prob. 9TY
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- In a reflecting telescope the objective is a concave mirror of radius of curvature 2m and an eyepiece is a convex lens of focal length 5 cm. Find the apparent size of a 25-m tree at a distance of 10 km that you would perceive when looking through the telescope.arrow_forwardWhy is it advantageous to use a large-diameter objective lens in a telescope? (a) It diffracts the light more effectively than smaller-diameter objective lenses. (b) It increases its magnification. (c) It enables you to see more objects in the field of view. (d) It reflects unwanted wavelengths. (e) It increases its resolution.arrow_forwardA Newtonian telescope has a mirror diameter of 300 mm and a focal length of 1500mm. The tube has an external diameter of 330mm and the focal plane is 40mm outside the tube.arrow_forward
- The magnifying power of a telescope with tube length 60 cm is 5. What is the focal length of its eyepiece?arrow_forwardWhen an object is placed 10 cm from a lens, the image created is upright and 2.1 times larger. Calculate the focal length of the lens. (Give your answer in centimeters but don't include the units.)arrow_forwardWhat is the voltage if the current is 4 A and the resistance is 10 ohms? Calculate the distance to the image if the object is 25 cm away and the focal length of the lens is 164 mm. Give your answer in cm. What would the frequency of a sound wave be if it was traveling at 148 m/s and had a wavelenth of 1278 cm? Calculate the magnification of a object if the focal length of the lens is 10cm, the distance to the object is 26cm, and the distance to the image is 1.98m. A fire engine is approaching an intersection. An observer is waiting at the crosswalk for the fire engine to pass before crossing the street. The fire engine is emitting a sound around 400Hz. Which of the following statement is true regarding the fire engine and the observer. What is the current running through a circuit if the voltage applied is 6.80mV and the resistor is 108ohms?arrow_forward
- Why does primary or objective lens of a refracting telescope should have a longer focal length?arrow_forwardThe Thirty Meter Telescope is a new telescope proposed for the top of the volcano Maunakea that is opposed by many native Hawaiians. Its circular mirror will be 30 m in diameter. In December 2028, Mars will be at its closest approach to Earth (this happens every three years). An astronomer has predicted that, when finished, the telescope will be able to resolve objects that are approximately 2.0 km across on Mars assuming perfect viewing conditions. Approximately how far away is Mars from the Earth when this happens? The dominate wavelengths of visible light coming from Mars are in the range of 500 nm to 700 nm.arrow_forwardLarge telescopes often have small fields of view, i.e. it can only see a very small corner of the sky. For example, the Hubble Space Telescope (HST) Advanced Camera has a field of view that is roughly square and about 0.055 degree on a side. Calculate the angular area of the HST's field of view in square degrees.arrow_forward
- a telescope is 275mm long and has an objective lens with a focal length of 257mm. (a) what is the focal length of the eye piece? (b) what is the magnification of this telescope?arrow_forwardLens A has a maximum magnifying power M = 2. Lens B has a maximum magnifying power M = 6. If these two lenses were put together to make a telescope, what would be the magnifying power of that telescope?arrow_forwardA telescope has an objective lens having a focal length of 10 m and a diameter of 100 cm. What is the magnification provided by this telescope if its eyepiece has a focal length of 5 cm?arrow_forward
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