# Physics Chapter 8

## 42 terms

### Indication that light is a wave is

that is has dark bands in the diffraction pattern

light is a wave

light is wave

transverse

1/60 degree

air

increases

about 1000 feet

### A piece of glass is shaped like a pyramid is titled at 45 degrees with respect to the horizontal . A beam of light is inside the glass, moving horzizontally. When it emerges from the titled surface of the glass , it will be moving

in a direction that is titled downward

### A stop sign is bright when you shine the headlamps of your car on it. It most likely is covered with

small glass spheres

### Diamonds sparkle in many colors

light velocity depends on color

All

### Two soap bubbles from the same soap appear to be different colors

different thickness

2/3c

### Stealth bombers are undetected by radar in part because

of the absence of corner reflectors

### Rainbows show different colors because

in water, different frequencies have different velocities

blue sky light

### A fiber can send much more information per second than a wire because

light has a very high frewuency

blue

the bit

green,blue,red

### People squint to see better because squinting

reduced the blur size

### Old people need reading glasses because their

lenses become less flexible

### Red eye in photographs comes from

light of the flash reflecting off the retina (the back of the eye)

### Your eye has

two lenses-the lens and the cornea

water,glass, ir

### Sunglasses can help you see a fish underwater because

relflected light is polarized

### Polarized are used for 3-D movies because

they give a different image to each eye

polarized light

### In the pinhole camera, more blurring occurs if

the hole is either very larger or very small

is a wave

### A successful fisherman will throw the spear

below the fish image

### To make a spy satellite that can read a license playe , you would have to

use a larger mirror

red blood cell

### The Keck telescope is powerful because

it has bigger mirror to collect

### When we say a man is color blind we usually mean that

he can't dishtinguish red from green

a mirror

.66 foot

polarizers

white

20 feet

communication