Ultraviolet is Used in Fluorescent Lamps Flashcards
1
Q
What is fluorescence a property of?
A
certain chemicals, where ultraviolet radiation is absorbed and them visible light is emitted
2
Q
Why do fluorescent colours look so bright?
A
Because they actually emit light
3
Q
What do fluorescent light use to emit visible light?
A
UV radiation
4
Q
When are they safe to use?
A
As nearly all the UV radiation is absorbed by a phosphor coating on the inside of the glass
5
Q
What does a phosphor coating on the inside of a glass emit?
A
Visible light instead
6
Q
Which are more energy-efficient: filament light bulbs or fluorescent lights
A
Fluorescent lights
