Light Flashcards
The third color of visible light
Yellow
How far light travels in a year?
Light Year
Sixth color of visible light
Indigo
Frequency continuum of a electric magnetic wave?
Electromagnetic Spectrum
T or F
The color of visible light are abbreviated roygbig
False
T or F
Unit for long intensity is
F
T or F
Visible light is located between ir and x-rays
F
T or F
Visible light is between ultraviolet& gamma rays?
F
T or F
Microwaves are on the Em spectrum
T
T or F
Visible light includes things we can’t see
F
A line with an arrow head is showing?
Direct Wave
A light source is power or the rate at which it radiates energy?
Intensity
The type of reflection off of smooth highly polished surface is…
Specular reflection
The type of reflection off of rough or uneven surfaces
Diffuse reflection
Name the colors of roygbiv
Red orange yellow blue indigo voilet
The unit of light intensity
Candela
The light ray approaching reflection?
Indecent ray
Out going ray after reflected off a ray
Reflected ray
Angle of the incident ray is called???
Angle of incidence ray
Light until it glows?
Incandescent
Angle of the reflected ray
Angle of reflection
Image seen where no real object exist
Virtual image
Light occurring when a substance radiates
Fluorescence
T or F
When rays converge it’s virtual image
False
T or F
A beam with lots of photons moving in the same direction
T
T or F
Virtual image is the same as a real image
F
T or F
Point where light rays converge is a focal length
F
T or F
A ray is an arrowhead?
T
T or F
When rays of light converge it’s a real image
T
Slightly dished in on reflective side?
Concave
SI unit for light intensity
Candela
Mirror surface bulges outward
Convex
Disk that refracts light
Lens
All frequencies that humans can see?
Visible light
