User:Marshallsumter/Radiation astronomy1/Microwaves/Quiz

Microwave astronomy is a lecture from the radiation astronomy department that is included in the course principles of radiation astronomy.

You are free to take this quiz based on microwave astronomy at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the template. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz
{Complete the text: In the case of electric { dipole (i) } radiation, the associated fluctuation in angular { momentum (i) } is due to absorption of and decays stimulated by { microwave (i) } photons (dominated by Cosmic Microwave Background (CMB) photons in the { diffuse (i) } interstellar { mediuma (i) } (ISM).
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{Yes or No, Locations exist which have a lower temperature than the CMB. + Yes - No
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{Complete the text: Match up the letter with the frequency range possibilities below: microwaves - L SHF - M UHF - N EHF - O RF - P Submillimeters - Q IR - R Visible rays - S UV - T X-rays - U γ-rays - V 30 PHz to 30 EHz { U (i) }. 0.3 GHz to 300 GHz { L (i) }. 300 GHz to 3 THz { Q (i) }. 790 THz to 30 PHz { T (i) }. 300 MHz to 3 GHz { N (i) }. 300 GHz to 430 THz { R (i) }. > 30 EHz { V (i) }. 30 to 300 GHz { O (i) }. 430 THz to 790 THz { S (i) }. 3 kHz to 300 GHz { P (i) }. 3 to 30 GHz { M (i) }.
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{True or False, Radio rays have wavelengths of one millimeter or more. + TRUE - FALSE
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{Complete the text: Astronomers place the submillimetre waveband between the { far-infrared (i) } and { microwave (i) } wavebands, typically taken to be between a few hundred micrometres and a millimetre.
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{Yes or No, Microwaves have wavelengths of one millimeter or more up to a meter. + Yes - No
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{Which types of radiation astronomy directly observe the rocky-object surface of Venus? - meteor astronomy - cosmic-ray astronomy - neutron astronomy - proton astronomy - beta-ray astronomy - neutrino astronomy - gamma-ray astronomy - X-ray astronomy - ultraviolet astronomy - visual astronomy - infrared astronomy - submillimeter astronomy + radio astronomy + radar astronomy + microwave astronomy - superluminal astronomy
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{Complete the text: The peak emissivity is enhanced by about 23% for the { warm interstellar medium (i) } (WIM) and only 11 % for the { warm neutral medium (i) } (WNM), although the peak frequency remains unchanged.
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{True or False, The position of the Sun can be determined directly with the use of microwave astronomy. - TRUE + FALSE
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{Complete the text: The cosmic microwave background radiation is a { nearly uniform (i) } glow that fills the { sky (i) } in the { microwave (i) } part of the { spectrum (i) }.
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Hypotheses

 * 1) Microwaves may have been used more extensively to study the Solar System.