Module 6A

Question 1

Optics

Answer 1

The study of light in all it’s forms, visible & Invisble

Question 2

Light

Answer 2

Electromagnetic radiation

Question 3

299, 792, 458 meters per second

Answer 3

The speed of light

Question 4

Both a wave & a particle

Answer 4

Light

Question 5

Light particles are traced as straight lines called rays

Answer 5

Geometric school of light

Question 6

“Light is exclusively particles”

Answer 6

Isaac Newton

Question 7

“Light is exclusively waves”

Answer 7

Christian Huygens

Question 8

Light wave paths are drawn as advancing wave fronts

Answer 8

Physical school of light

Question 9

Electromagnetic Wave

Answer 9

Light

Question 10

We say that the electric field disturbance creates the magnetic field disturbance and the magnetic field disturbance, in response, creates the electric field disturbance, back and forth, ad infinitum.

Answer 10

Light is self-propagating

Question 11

Ampere’s Law

Answer 11

the electric field disturbance creates the magnetic field disturbance

Question 12

Faraday’s Law

Answer 12

the magnetic field disturbance creates the electric field disturbance

Question 13

Non-mechanical wave

Answer 13

light

Question 14

Gets dimmer the further you are away from it

Answer 14

Light

Question 15

Inverse Square Law

Answer 15

The intensity of an ordinary light source decreases with the distance squared.

Question 16

Intensity of Light

Answer 16

The power of a light source divided by the area upon which the light is indecent

Question 17

Lumens

Answer 17

The units light intensity is measured in

Question 18

Temporally coherent light

Answer 18

all one frequency

Question 19

Spatially coherent light

Answer 19

all the rays go in one direction

Question 20

Temporally and spatially coherent

Answer 20

Coherent light

Question 21

Lazer light

Answer 21

Coherent Light

Question 22

700 nanometers- 400 nanometers

Answer 22

Range of light wavelengths humans can see

Question 23

Nanometer

Answer 23

A billionth of a meter

Question 24

Dark red

Answer 24

Visible light near 700 nanometers

Question 25

Dark violet

Answer 25

Visible light near 400 nanometers

Question 26

Color

Answer 26

A perception

Question 27

Electromagnetic Spectrum

Answer 27

Range array of light frequencies by type

Question 28

Radio, television, microwaves, infared, visble, ultraviolet, x-ray, gamma ray, y-rays, cosmic ray

Answer 28

Ranges of the electromagnetic spectrum

Question 29

Reflection of Light

Answer 29

The bouncing of light off matter

Question 30

Transmission

Answer 30

Movement of light thru. something (solid, liquid, gas)

Question 31

Absorption of Light

Answer 31

The transmission of the lights energy into mechanical energy in the matter with the subsequent re-emission of the new light out of the matter at a lower frequency

Question 32

Reflection, refraction, dispersion, diffraction, doppler effect

Answer 32

Classical Phenomena of Light

Question 33

Reflection

Answer 33

The bouncing of light off matter

Question 34

Refraction

Answer 34

The bending of light as it passes from one optical medium to another of a different denstity

Question 35

Dispersion

Answer 35

The breaking up of white light into it's component colors

Question 36

Diffraction

Answer 36

The bending of light around corners

Question 37

Doppler Effect

Answer 37

The observance of a shifting of a light's wave's frequency because of relative motion between the source of light and the observer of the light.

Question 38

Specular Reflection

Answer 38

Image integrity is maintained in reflection

Question 39

Image Integrity

Answer 39

Seeing an object in reflection and still being able to identify it

Question 40

Diffuse reflection

Answer 40

When light reflects in random directions off a less than shiny and smooth surface

Question 41

The angle made by the incoming ray and the normal line equals the angle made by the outgoing ray and the normal line up from the point of impingment

Answer 41

The law of relection

Question 42

Parabolic Mirror

Answer 42

The mirror itself, in 3 dimensions, is generated by "spinning" this parabolic cross section around the axis of the symmetry

Question 43

Real image

Answer 43

An image formed by converging rays

Question 44

Inverted image

Answer 44

An image that is upside down relative to the object being imaged

Question 45

Reduced image

Answer 45

An image that is smaller in size than the object being imaged

Question 46

Image magnification

Answer 46

The size of the image relative to the size of the object

Question 47

Rays

Answer 47

Straight lines that are always perpendicular

Question 48

Huygens Principle

Answer 48

Each point on a wave front can be considered a point source of circular waves

Question 49

Cones

Answer 49

The color cells in the retina's of our eyes

Question 50

Red cones

Answer 50

700 nm

Question 51

Blue cones

Answer 51

400 nm

Question 52

Green cones

Answer 52

550 nm

Question 53

Photoelectric Effect

Answer 53

Certain materials lost their change more quickly when exposed to UV ligth

Question 54

Index refraction

Answer 54

The speed of light in the vaccume divided by the speed of light in the medium

Question 55

Cherenkov Raditation

Answer 55

When electrons move at speeds less than c but greater than the speed of light in the optical medium being used, those electrons will give off a special kind of light