Physical and Geometric Optics Flashcards
Who proposed the Wave Theory of Light?
light spreads out in all directions
Christian Huygens
Who proposed the CORPUSCULAR theory?
light is emitted by tine particles called “corpuscles”
Sir Isaac Newton
Who said light travels faster in air than water?
measured the speed of light
Leon Foucault
Who proposed the Electromagnetic Theory?
James Clark Maxwell
Who said the speed of light is CONSTANT
Albert Einstein
Who proposed the Quantum Theory of Energy?
light travels in packages called photons
Max Planck
List the following wavelengths from
SHORTEST to LONGEST
- Gamma Rays
- X Rays
- UV Rayes
- Blue Light
- Orange Light
- Infrared Light
- Microwaves
- Radio Waves
What is the difference between Reflection Vs Refraction?
Reflection BOUNCES
Refraction BENDS
Name the 3 Light Rays
Diverging
Converging
Parallel
How can images be portrayed?
Real or Virtual
Magnified or Minified
Upright of Inverted
The type of image depends upon?
Specific type of mirror or lends
Where the object is placed
When light enters a prism where does it bend?
Base
What visible light has the HIGHEST FREQUENCY and the SHORTEST WAVELENGTH?
Violet
What visible light has the LOWEST FREQUENCY and the LONGEST WAVELENTH?
Red
What is the wavelength of visible light? `
Between 400 - 750 nm
Convex Lens are 2 prisms..?
base to base
Concave Lenses are placed..?
apex to apex
Where is the focal point of plus lens?
behind
Where is the focal point of minus lens?
in front
What is the Focal Length of a Lens?
Parallel rays arriving at a lens focus at its focal point
The distance from the lens to the focal point
Where is the focal point of a Convex Lens?
converging
behind
Where is the focal point of a Concave Lens?
diverging
in front
What is Optical Power?
amount that a lens, mirror or other optical system either converges or diverges light
Convex Lens Power Image Size Image Location Image Type
Converging Plus Power Magnified Real and Inverted Behind The Lens Ex. Rear View mirror
Concave Lens Power Image Type Image Location Image Size
Diverging Minus Power Virtual and Upright In Front of The Lens Ex. Makeup Mirror
What are the two type of Lenses?
Converging / + power
Diverging / - power
What are the components of a prescription?
Sphere, Cylinder, Axis
Describe the Spherical
Same power in all directions
Describe the Cylindrical Power
Power in meridian
Axis is 90 degrees from power
One direction
Identification includes both power and axis
Describe Spherocylindrical Lens
Sphere has power along both meridians
Cylinder has no power along the axis
