Snells Law
Large Angle Fast Side
ROY G. BIV=
Red, Orange, Yellow, Green, Blue, Indigo, Violet
A Lens is a _____________ medium with __________ surfaces, and at least one of which is _____________.
Transparent, 2 Polished, Curved
What Happens when Light Strikes an Object?
Absorbed, Refracted, or Reflected
Angles must be written positive or negative. True or False?
True
When a ray of light travels from one material to another, if its direction of travel is perpendicular or normal to the surface of the material_____________
it will change speed but not direction.
group of pencils of light that DO NOT diverge from one, single point. Rather, they originate of from all the points on a light source.
Beam of Light
•If one surface is concave and one surface is convex, it is considered a _____ lens.
bent
Light strikes a surface and bounces back at an angle into the incident material instead of traveling on into the new material.
Reflection
The following is a correct way to write dioptric power. True or False?
.75
False
A ray of light travels from a material into air and strikes the surface at an angle greater than the critical angle for the material. What will happen to the ray of light?
Total Internal Reflection
the smallest particle of light possible
Photon
Can have a real image
Convex (Plus lenses)
Absorption: when a photon of light enters a medium and does not exit. What does it do instead?
Converted to another type of energy: Chemical, Electrical, Thermal
Focal length does not need a positive or negative sign. True or False?
False
When a ray of light travels from a more dense (or slower) material to a less dense (or faster) material at an angle to the normal_____________________
the single path of a photon of light from a single point on a light source
Ray
Shows with motion
Concave (Minus lenses)
Light strikes a surface and bounces back at an angle into the incident material instead of traveling on into the new material
Reflection
The following is in correct notation:
+2.00 -1.25 x 021
True or False?
True
When a ray of light travels from a less dense (or faster) material to a more dense (or slower) material at an angle to the normal it will bend ______
toward the normal
a group of rays that are DIVERGANT from one, single point
Pencil
1.The higher the index of the material the _____ the light will be bent
More
The angle (i) at which a ray of light will emerge parallel to the surface of the refracting material when light travels from a more dense material to a less dense material
Critical Angle
What is the following formula?
N= D1 + D2
Nominal Lens Formula