21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 6, Problem 10QP
To determine
The reason for getting high quality images from cameras using adaptive optics.
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Students have asked these similar questions
The Very Long Baseline Array (VLBA) is
a.
the highest resolution optical telescope ever built.
b.
located in Arecibo, Puerto Rico.
c.
a matched pair of 8-meter telescopes, one of which is in Chile and the other in Hawaii.
d.
an airborne infrared telescope.
e.
a set of radio telescopes linked together electronically to provide very high resolution.
Which of the following describes interferometry?
a.
It is used to improve resolving power.
b.
It decreases the chromatic aberration of a telescope.
c.
It works only for large X-ray and ultraviolet telescopes.
d.
It requires that radio telescopes be within a few hundred feet of each other.
e.
None of the above statements are true.
A telescope that suffers from chromatic aberration and has a low light-gathering power is most likely a(n)
a.
small diameter reflecting telescope.
b.
small diameter refracting telescope.
c.
large diameter refracting telescope.
d.
large diameter reflecting telescope
e.
infrared telescope.
Chapter 6 Solutions
21st Century Astronomy
Ch. 6.1 - Prob. 6.1ACYUCh. 6.1 - Prob. 6.1BCYUCh. 6.2 - Prob. 6.2CYUCh. 6.3 - Prob. 6.3CYUCh. 6.4 - Prob. 6.4CYUCh. 6.5 - Prob. 6.5CYUCh. 6 - Prob. 1QPCh. 6 - Prob. 2QPCh. 6 - Prob. 3QPCh. 6 - Prob. 4QP
Ch. 6 - Prob. 5QPCh. 6 - Prob. 6QPCh. 6 - Prob. 7QPCh. 6 - Prob. 8QPCh. 6 - Prob. 9QPCh. 6 - Prob. 10QPCh. 6 - Prob. 11QPCh. 6 - Prob. 12QPCh. 6 - Prob. 13QPCh. 6 - Prob. 14QPCh. 6 - Prob. 15QPCh. 6 - Prob. 16QPCh. 6 - Prob. 17QPCh. 6 - Prob. 18QPCh. 6 - Prob. 19QPCh. 6 - Prob. 20QPCh. 6 - Prob. 21QPCh. 6 - Prob. 22QPCh. 6 - Prob. 23QPCh. 6 - Prob. 24QPCh. 6 - Prob. 25QPCh. 6 - Prob. 26QPCh. 6 - Prob. 27QPCh. 6 - Prob. 28QPCh. 6 - Prob. 29QPCh. 6 - Prob. 30QPCh. 6 - Prob. 31QPCh. 6 - Prob. 32QPCh. 6 - Prob. 33QPCh. 6 - Prob. 34QPCh. 6 - Prob. 35QPCh. 6 - Prob. 36QPCh. 6 - Prob. 37QPCh. 6 - Prob. 38QPCh. 6 - Prob. 39QPCh. 6 - Prob. 40QPCh. 6 - Prob. 41QPCh. 6 - Prob. 42QPCh. 6 - Prob. 43QPCh. 6 - Prob. 44QPCh. 6 - Prob. 45QP
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- Which of the following is NOT an advantage that a REFLECTING telescope has over a REFRACTING telescope? a. glass need not be as of high quality. b. can see stars during the day. c. less expensive. d. no chromatic aberration. e. mirror can be supported more fully than lens. 2. When looking at a cross section diagram of a planet, why might the layer of a planet between the core and crust appear green? a. There is a lot of methane in that layer.b. To represent chlorophyll in the atmosphere. c. This layer is typically made of green jade.d. Green is the middle color of ROYGBIV, so it was used to represent the middle layer. e. Because such layer is composed of rocks containing a lot of Olivine.arrow_forwardA telescope is used to resolve two distant stars. By what factor will the resolution of the telescope change if the diameter of the lens is doubled? a)The resolution will increase by a factor of 4 b)The resolution will increase by a factor of 2 c)The resolution will not change, although more light will be collected. d)The resolution will decrease by a factor of 2 e)The resolution will decrease by a factor of 4 f)arrow_forwardIf the diameter of a radar dish is doubled, what happens to its resolving power, assuming that all other factors remain unchanged? a. The resolving power quadruples. b.The resolving power doubles. c. The resolving power is reduced to 1/2 of its original value. d. The resolving power is reduted to 1/4 of its original value. e.The resolving power does/not change unless the focal length changes. f.None of the abovearrow_forward
- A new generation of telescopes is currently being built that overcomes the limitations of the older large telescopes. Some of these new telescopes a. use segmented mirrors. b. use mirrors that are very thin. c. use active optics to control the shape of the mirror. d. do all of the above. e. do none of the above.arrow_forward2. If a telescope with focal length 30 cm "sees" an object taking up 2° of its view, how big is the image in the telescope? 3. If an object makes an image that's 0.5 mm on your retina, how many degrees of your view does it occupy? 4. When you zoom into an object optically with your camera (not electronic zoom), does the lens extend or contract? Why? 5. Why is a ground-based x-ray telescope not a great idea? 6. What is the resolution in seconds of telescope with a 0.5 m diameter lens at visible light? 7. Some telescopes are dual-purpose: they detect visible light and infra-red. Were the telescope in the question above capable of this, would it have higher resolution in infra-red or lower (compared to visible light)? 8. What diameter lens do you need on a telescope that can resolve up to a thousandth of a second? 9. A magnifying glass is rated at 3.5 magnification for normal eyes (i.e., mine, not some crazily good ones - Lucie, Remonia: I'm looking at you, or would be if I could only…arrow_forwardThe instrument that can record the image of a faint object in the least amount of observing time is the a. human eye. b. photographic plate. c. photometer. d. charge-coupled device (CCD). e. spectrometer.arrow_forward
- In a refracting telescope, spherical aberration limits a. The focal length of the eyepiece b. Chromatic aberration c. The diameter of the objective lens d. The total focusing power of the telescope e. The length of the telescopearrow_forwardThe most important function of an astronomical telescope is to: a. collect as much light as possible and bring it into focus c. enhance the violet colors of an object, which our eyes have trouble seeing d. bring distant objects closer by pulling on the lightarrow_forward3. If an object makes an image that's 0.5 mm on your retina, how many degrees of your view does it occupy? 4. When you zoom into an object optically with your camera (not electronic zoom), does the lens extend or contract? Why? 5. Why is a ground-based x-ray telescope not a great idea? 6. What is the resolution in seconds of telescope with a 0.5 m diameter lens at visible light? 7. Some telescopes are dual-purpose: they detect visible light and infra-red. Were the telescope in the question above capable of this, would it have higher resolution in infra-red or lower (compared to visible light)? 8. What diameter lens do you need on a telescope that can resolve up to a thousandth of a second? 9. A magnifying glass is rated at 3.5 magnification for normal eyes (i.e., mine, not some crazily good ones - Lucie, Remonia: I'm looking at you, or would be if I could only focus my eyes) that are focused on an image at the near point. What is its focal length? What would the focal length be if the…arrow_forward
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