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Radiation/Rays/Quiz

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This slow motion simulation is of typical adaptive optics operation at a telescope. Credit: Rnt20.

Rays is a stand-alone lecture. It overlaps areas such as radiation astronomy, radiation chemistry, radiation biology, and radiation physics. There are aspects included in the various health sciences and medicine.

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Quiz

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1 Yes or No, Tertiary radiation caused by secondary radiation are called delta rays.

Yes
No

2 Complete the text:

An action or process of

or sending out a traveling

in a line, beam, or

of small cross section is called radiation.

3 True or False, The term radiation is often used to refer to the ray itself.

TRUE
FALSE

4 Complete the text:

Terahertz radiation refers to electromagnetic waves propagating at

in the

range.

5 True or False, Rays may have a temporal, spectral, or spatial distribution.

TRUE
FALSE

6 Which of the following is not characteristic of a neutrino?

neutrinos are affected by the weak nuclear force
produced by a positron annihilating an electron
a decay product of a neutron
produced by the near surface fusion on the Sun
may have a mass
comes in mutable varieties

7 True or False, A delta ray is characterized by very fast electrons produced in quantity by alpha particles or other fast energetic charged particles knocking orbiting electrons out of atoms.

TRUE
FALSE

8 Complete the text:

and

radiation are best absorbed by atoms with heavy nuclei.

9 True or False, Epsilon rays are a form of particle radiation and are composed of electrons.

TRUE
FALSE

10 Beta rays, or beta particles, are more penetrating than what other Greek letter designated rays or particles?

11 True or False, The optical and thermal properties of fused quartz are superior to those of other types of glass due to its purity.

TRUE
FALSE

12 Complete the text:

Beta particles are high-energy, high-speed

or positrons emitted by certain types of

nuclei such as

-40.

13 True or False, The optical dispersion of fused silica can be approximated by the Sellmeier equation.

TRUE
FALSE

14 Which of the following is not a characteristic of showers?

throwing a beam
meteors
rain
snow
hail

15 True or False, In most photography and all telescopy, where the subject is essentially infinitely far away, longer focal length (lower optical power) leads to higher magnification and a narrower angle of view.

TRUE
FALSE

16 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)

.

17 True or False, A hydrometeor is a precipitation product.

TRUE
FALSE

18 Which of the following is not a radiation phenomenon associated with a crater?

strata
elongated dust particles
high albedo
olivine
Rayleighs
volcanoes

19 True or False, A delta ray is a ray of very fast positrons.

TRUE
FALSE

20 Radiation phenomena associated with craters include?

catena
secondary craters
checking equations about complex systems
deformed strata
electric arcs
explosions


Hypotheses

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Main resource: Hypotheses
  1. Rays do not always go in straight lines or line segments.

See also

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{{Principles of radiation astronomy}}

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