21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 6, Problem 8QP
To determine
The advantage of better resolution for astronomers.
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Students have asked these similar questions
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.
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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- The focus location that would be most inconvenient for a very large telescope is the a. Newtonian focus. b. prime focus. c. coudé focus d. Cassegrain focus. e. refracting focus.arrow_forwardThe 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.arrow_forwardA 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_forward
- Which of the following telescopes must be used above Earth’s atmosphere? a. an optical telescope b. the VLBI telescope c. an X-ray telescope d. a radio telescope e. none of the abovearrow_forwardOne of the disadvantages of a radio telescope compared to a reflecting optical telescope is its inability to a. reveal finer detail. b. detect cool hydrogen. c. see through interstellar dust. d. see some of the most distant objects in the universe.arrow_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_forward
- 49.) A refracting telescope uses a. both mirrors and lenses to collect and focus light from distant objects. b. only mirrors to collect and focus light from distant objects c. only lenses to collect and focus light from distant objects.arrow_forwardThe sidereal drive of a telescope mounting must turn the telescope a. southward about the polar axis. b. eastward about the polar axis. c. westward about the polar axis. d. northward about the polar axis. e. in no direction; none of the above are true.arrow_forward7) What is the angular resolution of a 5-meter lens diameter telescope at a wavelength of 500 nm? a. 1.22x10^-7 b. 1.22x10^-6 c. 2.44x10^-7 d. 2.44x10^-6arrow_forward
- The Moon has no sustained atmosphere. What advantages would you have if you built an observatory on the lunar surface? (Select all that apply.) a. On Earth, large mirrors in telescopes can sag under their own weight. Without an atmosphere to apply pressure, mirrors on the Moon would not sag. b. We could observe during the day. Without an atmosphere, sunlight is not scattered and the sky remains dark. c. We could observe continuously, because there would never be any clouds. d. The Moon is closer to many stars than the Earth, and lunar-based telescopes would produce images with more detail based on this closer proximity. e. There is no atmosphere to absorb or scatter radiation, so all wavelengths of light could be observed with lunar-based telescopes, from radio waves to gamma rays. f. Distortion of mirrors due to temperature shifts would no longer be an issue, without an atmosphere to retain the heat from sunlight. g. Without atmospheric turbulence, there would be no…arrow_forwardwhich types of telescopes must be placed and operated in space well above earth's atmosphere ? (select all that apply) a. gamma ray telescope b. x ray telescope c.UV telescope d. visible light telescope e.infrared telescope f. radio telescopearrow_forward3. Give atleast 3 uses to law enforcement the different kinds of photography other than what is provided in the module: la. Infrared Photography "b. Ultraviolet Photography Mc. Photomicrogprahy Md. Macrophotography Me. X-Ray Photographyarrow_forward
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