Quest 4/26/23

Question 1

red
martians
invade
venus
using
x-ray
guns

Answer 1

radio
microwave
infrared
visible
venus
UV
x-ray
guns

Question 2

light

Answer 2

that portion of the electromagnetic spectrum that stimulates our retinas

Question 3

retina

Answer 3

layer of cells (sensitive) and the back of the eyeball

Question 4

transparent

Answer 4

allowing all light to pass through

Question 5

translucent

Answer 5

allowing some light to pass through

Question 6

opaque

Answer 6

allowing no light to pass through

Question 7

what is white light

Answer 7

ROYGBIV all together

Question 8

Primary colors of light

Answer 8

red, green, blue

Question 9

Primary colors of pigment

Answer 9

magenta, cyan, yellow

Question 10

red + green

Answer 10

yellow

Question 11

blue + green

Answer 11

cyan

Question 12

red + blue

Answer 12

magenta

Question 13

red + green + blue

Answer 13

white

Question 14

yellow + blue

Answer 14

white

Question 15

polarized light

Answer 15

light whose waves are vibrating in only one plane

Question 16

LASER

Answer 16

Light Amplification by Stimulated Emission of Radiation

Question 17

monochromatic

Answer 17

consisting of only one frequency

Question 18

coherent

Answer 18

having all of its waves in phase

Question 19

undirectional

Answer 19

moving in only one line

Question 20

snell’s law

Answer 20

for a ray travelling from one medium to another

Question 21

snell’s law equation

Answer 21

n1sinΘ1=n2sinΘ2

Question 22

converging lens

Answer 22

is a convex lens that causes // rays to meet at a focal point. The focal length (f) is the distance from the center of the lens to the focal point

Question 23

diverging lens

Answer 23

a concave lens that causes// light rays to spread apart. Its focal point is where the diverging same side of the lens as the object

Question 24

focal length

Answer 24

• number

Question 25

real image

Answer 25

one that is formed by converging light rays that can be displayed on a screen

Question 26

virtual image

Answer 26

formed through reflection n / refraction and can be seen by an observer. This image cannot be projected on a screen bc light from the object does not come into focus

Question 27

refraction

Answer 27

can account for a wide range of interesting phenomena including:
-lingering sunsets
-difficulty locating objects in H2O
-Mirages on the road
-The “twinkling” of stars
-rainbows

Question 28

dispersion

Answer 28

separation of light into a sepctrum by refraction

Question 29

total internal reflection (TIR)

Answer 29

occurs when light passes from an optically dense medium to a less dense medium at an angle of incident greater than the critical angle