Share Optics Review
Save to Folder
Light is ?
an electromagnetic wave that moves in a straight line
What speed does light travel at in a vacuum?
3*10^8 m / s
What does it mean to "converge"
to come together at a single point
What does it mean to diverge?
To come apart in different directions
The light from glowsticks is an example of?
Chemiluminescence
Two quartz crystals are rubbed together and produce some light. What is this called?
Triboluminescence
Bioluminescence is?
light produced from chemical reactions in living organisms
A crime-scene investigator shines a UV light around a room, and sees a splotch of light on the ground. What is this effect called?
Fluorescence
When light speeds up, it bends towards the normal. True or false?
False
Is incandescent light hot or cold?
Hot
Name one source of light from a natural source
???
When speaking of sources of light, a mirror is what kind of source of light?
Non-luminous
Glow-in-the-dark stuff is an example of what source of light?
Phosphorescence
Name one example of diffuse reflection
Objects we see in everyday life, crumpled up aluminum foil, etc.
Name one example of specular reflection
Light shined at a clean flat mirror; The sky reflected off a calm lake
Refraction and Reflection never happen at the same time. True or false?
False
