Lenses/mirrors

Front 1

What is the difference between concave and convex mirrors?

Back 1

Front 2

What is the relation of focal, center of curvature, and the mirror?

Back 2

Focal point is 1/2 distance between mirror and center of curvature.

Front 3

Relate center of curvature and radius

Back 3

Center of curvature is the radius of the circle.

Front 4

Relate focal length, object distance, and image distance

Back 4

1/f = 1/o + 1/i

Hint 4

Randy Foi.

Front 5

relate radius of curvature to the optics equation

Back 5

1/f = 1/o + 1/i = 2/r

Hint 5

foier!

Front 6

Concave pnemonic?

Back 6

Look into the cave

Front 7

For a mirror where is the positive focal point?

Back 7

We want the light rays to converge on the same side as incoming light.

Front 8

How can you define a real image?

Back 8

If the central ray and parallel ray converge

Front 9

Define a virual image

Back 9

Eye extrapolates a image (light rays don't actually converge)

Front 10

For mirrors when do lights ray diverge and when do they converge?

Back 10

diverge in convex mirror. converge in concave mirror.

Front 11

What is the equation for magnification?

Back 11

(-i)/o

Front 12

What is the difference between a parallel ray and a central ray?

Back 12

parallel goes from object to mirror in a line parallel to central axis then through focal point.

central ray goes from object to mirror on a diagonal then through focal point.

Front 13

What is true of all real images?

Back 13

They are inverted.

Hint 13

Think about how images are formed on the retina.

Front 14

For concave mirror if rays converge on same side incoming light?

Back 14

Real. Converge at Positive Focal Point.

Front 15

For concave mirror, if rays converge on other side of mirror of incoming light?

Back 15

Virtual, converge at negative Focal point.

Front 16

For concave mirror, object behind focal point.

Back 16

Real

Inverted

Magnified

Hint 16

Behind the R.I.M.

Front 17

For concave mirror, object on top of the focal point

Back 17

no image. rays never converge.

Front 18

Object in front of the focal point

Back 18

Magnified

Upright

Virtual.

Light rays converge behind the mirror. virtual.

Hint 18

MUV in front.

Front 19

What is true of all convex mirrors?

Back 19

Light rays diverge

Front 20

For all converging mirrors, what is the focal point of the image going to show?

Back 20

Negative focal length

Front 21

No matter where the object is what is the image going to show?

Back 21

Upright

Reduced

Virtual

Hint 21

U Really Vex me.

Front 22

For Lenses, convex lenses are always?

Back 22

Converging.

Front 23

Where do we want the light rays to converge for lens in general?

Back 23

Opposite side of mirror. This will be the + focal point.

Hint 23

Opposed to mirrors.

Front 24

For lenses, concave lenses are always?

Back 24

Diverging.

Front 25

For convex lenses object behind the focal point?

Back 25

Real

Inverted

Magnified

Hint 25

Behind the R.I.M.

Front 26

For convex lenses object at the focal point,

Back 26

no image.

rays never converge

Front 27

For convex lenses, object in front of the focal point?

Back 27

Magnified

Upright

Virtual

converge on the same side as incoming light.

Hint 27

MUV in front

Front 28

The rules of a convex lenses =

Back 28

Rules of a concave mirror

Hint 28

Both converging.

Front 29

rules of a concave lens =

Back 29

rules of a convex mirror.

Front 30

For a concave lens

Back 30

reduced

virtual

upright

Hint 30

same as convex mirror.