Optics

Question 1

Define incandescent light

Answer 1

Light of the result of a high temperature such as a candle

Question 2

Electric discharge

Answer 2

Produced by an electric current running through gas, such as neon light or lightning

Question 3

Define phosphorescence

Answer 3

Phosphorus absorbs UV light and emits it in the dark

Question 4

Define Florescence

Answer 4

Absorbs UV light and immediately releases it as visible light

Question 5

Define chemiluminescence

Answer 5

Light as a product of a chemical reaction, ex glow sticks

Question 6

Define bioluminescence

Answer 6

Chemical reactions producing light within a living organism

Question 7

Define triboluminescence

Answer 7

Light be crystals (scratching, crushed, rubbed)

Question 8

State the laws of reflection

Answer 8

The angle of incidence equals the angle of reflection

The incident ray, reflected ray, and normal all lie on the same plane

Question 9

Regular reflection occurs on what surface?

Answer 9

Smooth

Question 10

Diffuse reflection occurs on what surface?

Answer 10

Rough

Question 11

What way does light always travel?

Answer 11

Straight

Question 12

In a plane mirror, distance between the real and virtual object is?

Answer 12

The same

Question 13

In a plane mirror, the reflected object is? (salt)

Answer 13

Same size
Upright
Behind mirror
Virtual

Question 14

What shape is a concave mirror?

Answer 14

Inside edge faces object

Question 15

What are the four rules for concave mirrors?

Answer 15

1. A ray traveling through the focal point will reflect parallel to the principal axis
2. A ray traveling parallel to the principal axis will reflect through the focal point
3. A ray traveling through c will reflect upon itself
4. A ray traveling through the vertex follows the laws of reflection (iangle = rangle)

Question 16

To locate c, double

Answer 16

F

Question 17

To locate F, divide _ in two

Answer 17

C

Question 18

In a concave mirror, describe salt for an object beyond c

Answer 18

Smaller
Inverted
Between f and c
Real

Question 19

In a concave mirror, an object at c is?

Answer 19

Same
Inverted
At c
Real

Question 20

What is another name for a concave mirror?

Answer 20

Converging

Question 21

In a concave mirror, how will an object appear if it is between C and F

Answer 21

Larger
Inverted
Beyond c
Real

Question 22

Past F, in a concave mirror, the object become

Answer 22

Virtual

Question 23

In a concave mirror, as the object moves ______ the image moves _______

Answer 23

Closer, Further

Question 24

In convex mirrors, the c and f are on which side?

Answer 24

The far side of the mirror

Question 25

In a convex mirror, is the F positive or negative

Answer 25

Negative

Question 26

Light rays in a convex mirror always what

Answer 26

Diverge

Question 27

The formed image in a convex mirror is always

Answer 27

Virtual

Question 28

In a convex mirror, a ray traveling parallel to the principal axis will

Answer 28

Reflect through F as an extension of the reflected ray

Question 29

What changes as light moves from what medium to another?

Answer 29

Its speed

Question 30

How does light bend when travelling from a fast to slow medium?

Answer 30

Towards the normal

Question 31

How does light bend when travelling from a slow to fast medium?

Answer 31

Away from the middle line (normal)

Question 32

N is for

Answer 32

index of refraction

Question 33

C is for

Answer 33

speed of light in a vacuum (3 x 10 to the power of 8 m/s)

Question 34

V is for

Answer 34

Speed of light in given medium