What is the primary reason fluorite glows under UV light?
Why These 5 Rocks Actually Glow

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Science, Physics, Chemistry
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11th Grade - University
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It absorbs UV light and emits it at a different frequency.
It contains radioactive elements.
It is heated to a high temperature.
It reacts chemically with the air.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does phosphorescence differ from fluorescence in rocks?
Phosphorescent rocks glow longer after the light source is removed.
Phosphorescence only occurs in radioactive rocks.
Phosphorescent rocks do not require UV light to glow.
Phosphorescence requires a chemical reaction with air.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key requirement for a rock to exhibit triboluminescence?
It must be exposed to UV light.
It must be radioactive.
It must have an asymmetric crystal lattice.
It must have a symmetric crystal lattice.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which phenomenon involves rocks glowing due to mechanical stress?
Fluorescence
Phosphorescence
Triboluminescence
Electroluminescence
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes thermoluminescent rocks to emit light?
Chemical reactions with air
Heating after absorbing energy from another source
Mechanical stress
Exposure to UV light
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can electroluminescent rocks be identified?
They glow when an electric current is passed through them.
They glow when heated to high temperatures.
They glow due to chemical reactions with air.
They glow when exposed to UV light.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What potential application does the electroluminescence of diamonds have?
Creating glow-in-the-dark jewelry
Advancing quantum computing
Developing more efficient solar panels
Improving LED technology
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