Physical and Geometric Optics

Question 1

Who proposed the Wave Theory of Light?

light spreads out in all directions

Answer 1

Christian Huygens

Question 2

Who proposed the CORPUSCULAR theory?

light is emitted by tine particles called “corpuscles”

Answer 2

Sir Isaac Newton

Question 3

Who said light travels faster in air than water?

measured the speed of light

Answer 3

Leon Foucault

Question 4

Who proposed the Electromagnetic Theory?

Answer 4

James Clark Maxwell

Question 5

Who said the speed of light is CONSTANT

Answer 5

Albert Einstein

Question 6

Who proposed the Quantum Theory of Energy?

light travels in packages called photons

Answer 6

Max Planck

Question 7

List the following wavelengths from

SHORTEST to LONGEST

Answer 7

1. Gamma Rays
2. X Rays
3. UV Rayes
4. Blue Light
5. Orange Light
6. Infrared Light
7. Microwaves
8. Radio Waves

Question 8

What is the difference between Reflection Vs Refraction?

Answer 8

Reflection BOUNCES

Refraction BENDS

Question 9

Name the 3 Light Rays

Answer 9

Diverging
Converging
Parallel

Question 10

How can images be portrayed?

Answer 10

Real or Virtual
Magnified or Minified
Upright of Inverted

Question 11

The type of image depends upon?

Answer 11

Specific type of mirror or lends

Where the object is placed

Question 12

When light enters a prism where does it bend?

Answer 12

Base

Question 13

What visible light has the HIGHEST FREQUENCY and the SHORTEST WAVELENGTH?

Answer 13

Violet

Question 14

What visible light has the LOWEST FREQUENCY and the LONGEST WAVELENTH?

Answer 14

Red

Question 15

What is the wavelength of visible light? `

Answer 15

Between 400 - 750 nm

Question 16

Convex Lens are 2 prisms..?

Answer 16

base to base

Question 17

Concave Lenses are placed..?

Answer 17

apex to apex

Question 18

Where is the focal point of plus lens?

Answer 18

behind

Question 19

Where is the focal point of minus lens?

Answer 19

in front

Question 20

What is the Focal Length of a Lens?

Answer 20

Parallel rays arriving at a lens focus at its focal point

The distance from the lens to the focal point

Question 21

Where is the focal point of a Convex Lens?

converging

Answer 21

behind

Question 22

Where is the focal point of a Concave Lens?

diverging

Answer 22

in front

Question 23

What is Optical Power?

Answer 23

amount that a lens, mirror or other optical system either converges or diverges light

Question 24

Convex Lens
Power 
Image Size 
Image Location 
Image Type

Answer 24

Converging 
Plus Power 
Magnified 
Real and Inverted 
Behind The Lens 
Ex. Rear View mirror

Question 25

Concave Lens
Power 
Image Type 
Image Location 
Image Size

Answer 25

Diverging 
Minus Power 
Virtual and Upright 
In Front of The Lens 
Ex. Makeup Mirror

Question 26

What are the two type of Lenses?

Answer 26

Converging / + power

Diverging / - power

Question 27

What are the components of a prescription?

Answer 27

Sphere, Cylinder, Axis

Question 28

Describe the Spherical

Answer 28

Same power in all directions

Question 29

Describe the Cylindrical Power

Answer 29

Power in meridian
Axis is 90 degrees from power
One direction
Identification includes both power and axis

Question 30

Describe Spherocylindrical Lens

Answer 30

Sphere has power along both meridians

Cylinder has no power along the axis