Luminescence
Authored by Daria Ostrovskaya
English, Physics
University - Professional Development
Used 14+ times
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15 questions
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1.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Luminescence is emission of light by certain materials when they are relatively ... .
(a)
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Where can you not see luminescence?
incandencent lamps
glowworms
lightning
fluorescent lamps
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The first investigations of luminescence began with ...
an organic material
a polymer
a synthetic material
an inorganic material
4.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Today, the name ... is used for the chemical element only.
(a)
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Zinc sulfide is...
a phosphor
phosphorus
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Luminescence emission ... after an appropriate material has absorbed energy from a source such as ultraviolet or X-ray radiation, electron beams, chemical reactions, and so on.
(a)
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The absorbed energy is liberated in the form of …
ultraviolet radiation
nuclear energy
light or heat or both
X-ray radiation
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