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Spectrographs/Quiz

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Spectrographs/Lecture is a lecture on a variety of analyzing technologies. It is a part of the {{technology resources}} series on analytical optical instruments.

Engineers in a clean room at Ball Aerospace are building the Space Telescope Imaging Spectrograph. Credit: NASA.

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Quiz

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1 Yes or No, The entrance slit of the spectrograph needs to coincide with the focal plane of the telescope.

Yes
No

2 True or False, A spectrograph is an apparatus for photographing or otherwise recording spectra.

TRUE
FALSE

3 Complete the text:

Match up the radiation letter with each of the detector possibilities below:
Optical rays - L
Visual rays - M
Violet rays - N
Blue rays - O
Cyan rays - P
Green rays - Q
Yellow rays - R
Orange rays - S
Red rays - T
multialkali (Na-K-Sb-Cs) photocathode materials

.
F547M

.
F675W

.
broad-band filter centered at 404 nm

.
F588N

.
thallium bromide (TlBr) crystals

.
F606W

.
18 micrometers FWHM at 490 nm

.
wide-gap II-VI semiconductor ZnO doped with Co2+ (Zn1-xCoxO)

.

4 True or False, A CCD camera is a charge-coupled device.

TRUE
FALSE

5 Yes or No, A visual representation of the spectrum of a celestial body's radiation is called a spectraounce.

No
Yes

6 True or False, Spectrographs are limited to opticals.

TRUE
FALSE

7 Complete the text:

A visual representation of the spectrum of a physical object's radiation is called a

.

8 Yes or No, An optical instrument for measuring the absorption of light by chemical substances; typically it will plot a graph of absorption versus wavelength or frequency, and the patterns produced are used to identify the substances present, and their internal structure is called a spectrometer.

Yes
No

9 True or False, The space shuttle Atlantis has served as a spectrograph for micrometeoroids.

TRUE
FALSE

10 Yes or No, A measurement of the wavelength of electromagnetic radiation, especially any of several techniques used to analyze the structure of molecules; the measurement of spectra of things other than radiation, such as the masses of molecules and their breakdown products is called spectrometry.

Yes
No


Hypotheses

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Main resource: Hypotheses
  1. Spectrographs can be built to differentiate tachyons, luminals, and tardyons.

See also

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{{Radiation astronomy resources}}

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