Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Light & optics > Optics > Flashcards

Optics Flashcards

1
Q

____ - “Caves in” ][

A

Concave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

____ - “like a bubble” 0

A

Convex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

____ - Makes light rays come together

A

Converging

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

____ - Makes light rays separate or spread out

A

Diverging

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

A concave lens is also known as a ____ (converging/diverging) lens

A

Diverging lens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A convex lens is also known as a _____ (converging/diverging) lens

A

Converging lens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

___ of curvature (C) - For a spherical lens (or mirror), this is the center of the circular arc of the lens (or mirror)

A

Center of curvature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

___ of curvature (R) - Distance from C to the lens (or mirror)

A

Radius of curvature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

___ ___ (F) - For a spherical lens (or mirror), this is the point halfway in between the center of curvature and the lens (or mirror) tells us how much a light ray bends

A

Focal point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

___ ___ (f) - Distance from F to the lens (or mirror), 2F = R

A

Focal length

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

____ ___ - Perpendicular line drawn from the lens (or mirror) through the center of curvature, aka “the normal”

A

Principal Axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

___ - The real light rays CONVERGE to form the image (can be projected. FOR MIRRORS, IMAGE FORMS ON THE SAME SIDE AS THE OBJECT. Ex: Movie projector, our eyes)

A

Real

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

____ - The real light rays DIVERGE so virtual rays must be extended for convergence (can’t be projected. FOR MIRRORS, IMAGE FORMS ON THE OPPOSITE SIDE AS THE OBJECT. Ex: A magnifying glass)

A

Virtual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Concave lenses are always (virtual/real)

A

Virtual

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Convex lenses are always (virtual/real). They’re technically both but mostly:

A

Real

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

____ - Image stays pointing the same way as the object

A

Upright

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

___ - Image is flipped upside down as compared to the object

A

Inverted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

____ - Image is larger than the original object

A

Enlarged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

____ - Image is smaller than the original object

A

Reduced

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Plane mirrors are always VIRTUAL and will always produce an (upright/inverted) image

A

Upright

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Real images are always (inverted/upright)

A

Inverted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Virtual images are always (inverted/upright)

A

Upright

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

___ ___ - Stretch and compress the lens to reduce or increase the focal length based on an objects distance

A

Ciliary Muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

___ - Light sensitive tissue with photoreceptors that perceive light and relay info to the brain

A

Retina

25
Q

The images formed on your retina is _____ but your brain interprets the image as being right side up

A

Inverted

26
Q

____ - (nearsightedness /can’t see from far away) occurs when light rays converge in front of the retina (is fixed with a CONCAVE DIVERGING lens)

A

Myopia

27
Q

____ - (farsightedness / can’t see close up) occurs when light rays converge behind the retina (is fixed with a CONVEX CONVERGING lens)

A

Hyperopia

28
Q

___-___ ___ - 1/f = 1/do + 1/di

A

Lens-maker equation

29
Q

f is the ___ ___

A

Focal length

30
Q

do is the ___ ____

A

Object distance

31
Q

di is the ___ ____

A

Image distance

32
Q

___ ___ - m = hi/ho = - di/do

A

Magnification equation

33
Q

m stands for ___

A

Magnification

34
Q

hi is the ___ ___

A

Image height

35
Q

ho is the ___ ____

A

Object height

36
Q

f “focal length” for a concave lens is ___ (meaning the focal point is in front of the lens)

A

Negative

37
Q

f “focal length” for a CONVEX lens is ___ (meaning the focal point is behind the lens)

A

Positive

38
Q

do “object distance” is always ___ (meaning the object is always in front of the lens)

A

Positive

39
Q

di “image distance” is ONLY positive if the image is ___ (meaning it is formed behind the lens)

A

Real

40
Q

di “image distance” is ONLY negative if the image is ____ (meaning it is formed in front of the lens)

A

Virtual

41
Q

m “magnification” is only negative if an image is ____ (meaning it is upside down compared to the original object. Since “di” is positive for real images “m” is always negative. Real images are always inverted)

A

Inverted

42
Q

m “magnification” is ONLY positive if an image is _____ (Meaning it faced the same was as the original object. Since “di” is negative for virtual images, “m” is always positive. Virtual images are always upright)

A

Upright

43
Q

If m=1 the image is ___

A

The same size

44
Q

If m>1 the image is ____

A

Enlarged

45
Q

If m<1 the image is ___

A

Reduced

46
Q

Mirrors work as the result of ____

A

Reflection

47
Q

Lenses work as the result of ____

A

Refraction

48
Q

As the object moves CLOSER to a CONVERGING (convex) lens, the image will (enlarge/reduce/stay the same). And the object will seem like it is getting ____

A

Enlarge
Reduced

49
Q

The “BLUE” rays are the incident light rays which are the rays at the (points of the object/points of the image)

A

Points of the object (not the middle)

50
Q

The RED rays are the reflected/refracted rays that are at (points of the object/points of the image)

A

Points of the image (still not the middle)

51
Q

If the CONVEX lens is AT F (like as in 2F or F) there will be ___ ___ formed from parallel rays because they neither converge nor diverge

A

No image

52
Q

In a CONVEX lens if the object is in between F and the lens then the image will be ___ THE OBJECT and will be virtual, upright, and enlarged

A

BEHIND the object (on the same side of the lens)

53
Q

In a CONCAVE lens the top arrow will be moving forward and curving ___ once it reaches the concave lens. The dotted arrow behind it will be combined with it (/ like that)

A

Up

54
Q

In a CONCAVE lens the middle arrow will move downward and then move straight once it hits the concave lens. Dotted line will go in a straight line (—that throughout the thing)

A

lol

55
Q

In a CONCAVE lens the bottom line will go down till it hits the light and will continue to go downward. The dotted line will start from the top right and go down to the line ()

A

yuh

56
Q

If the image and the object are in the same area of the lens (like both on the left or right side of it) then that will make the image ___

A

Virtual

57
Q

The closer the object moves to the lens, the ____ the image gets

A

Larger

58
Q

The image for an object placed in front of a plane mirror is Virtual Upright and the same size

A

lol

Light & optics (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions