spherical mirrors

Question 1

two types of spherical mirrors

Answer 1

Concave and Convex

Question 2

center of the sphere from where the mirror was taken

Answer 2

center of curvature (C)

Question 3

center of the mirror

sometimes called the pole of the mirror

Answer 3

Vertex (V)

Question 4

radius of the sphere

distance between C and V

Answer 4

radius of curvature (R)

Question 5

straight line joining C and V

Answer 5

principal axis/ optical axis

Question 6

refers to the width of the mirror

Answer 6

Aperture (AB)

Question 7

the point where the refleced rays meet as in the case of a converging mirror (Concave Mirror) or the point where the reted rays seems to come from behind a diverging mirror (Convex Mirror)

Answer 7

Principal Focus (F)

Question 8

distance from the pole to the principal focus

midway between C and V, _______ is one half of the radius of curvature

Answer 8

Focal length (f)

Question 9

Parallel rays strike a concave mirror, the rays will be reflected and meet at a single point- principal focus

Answer 9

concave mirror converging

Question 10

when parallel rays strike it, the reflected rays spread out and never come to a focus

Answer 10

convex mirror is diverging mirror

Question 11

reflected rays extended in a convex mirror they would appear or seem to come from a single point behind the mirror

Answer 11

principal focus of the convex mirror

Question 12

principal focus in concave mirrors

Answer 12

Real

Question 13

principal focus of convex mirror

Answer 13

virtual

Question 14

T or F

A concave mirror is a CONVERGING mirror. A convex mirror is a DIVERGING mirror.

Answer 14

T

Question 15

T or F

Image formed by a convex mirror is never real because the reflected rays spread out from the mirror

Answer 15

T

Question 16

Virtual
Upright
Smaller than the Object

Answer 16

Inage formed by convex mirror

Question 17

T or F

A concave mirror can produce real or virtual images depending on the distance between the mirror and the object.

Answer 17

T

Question 18

location of object:
very far (at infinity)

Location of Image:
At F

Answer 18

real, inverted, very small ( almost a point)

Question 19

Location of object:
Beyond C

location of image:
Between C and F

Answer 19

real, inverted, smaller than the object

Question 20

Location of object:
At C

Location of image:
At C

Answer 20

real, inverted, same size as the object

Question 21

Location of object:
Between C and F

Location of image:
Beyond C

Answer 21

real, inverted, bigger than the object

Question 22

Location of object:
At F

Location of Image:
At Infinity

Answer 22

no image formed because all reflected rays are parallel

Question 23

Location of object:
between F and V

Location of Image:
Back of mirror

Answer 23

virtual, upright, bigger than the object

Question 24

T or F

Virtual images formed by convex mirrors are smaller than the object

Answer 24

T

Question 25

T or F | Virtual images formed by plane mirrors are the same size as the object

Answer 25

T

Question 26

T or F | Concave mirrors are bigger than the object

Answer 26

T

Question 27

1) A ray passing through the center of curvature is reflected along itself. 2) A ray parallel to the optical axis is relfected thorugh the principal focus as in cass of concerging mirrors or when extended it appears to come from principal focus as in case of diverging mirrors. Broken lines are used to indicate an extended ray. 3) A ray passing through the focus (or which when extended passes through the focus) is reflected parallel to the optical axis. 4) A ray striking the vertex of the mirror is reflected at an equal angle on the opposite side of the principal axis

Answer 27

Memorize gags

Question 28

f= focal length R=radius of curvature do=object distance from the vertex of the mirror di=image distance from the vertex of the mirror

Answer 28

memorize

Question 29

Focal Length: Positive ? Negative ?

Answer 29

1) concave mirror | 2) convex mirror

Question 30

di: Positive: ? Negative ?

Answer 30

Real | Virtual

Question 31

do: | always ?

Answer 31

positive

Question 32

position of the lens equation?

Answer 32

mirror/lens equation

Question 33

mirror/lens equation

Answer 33

1/do + 1/di =1/f = 2/R

Question 34

calculate orientation and size of the image

Answer 34

Magnification Equation

Question 35

Magnification Equation: Positive: ? Negative: ?

Answer 35

Upright | Inverted

Question 36

Magnification Equation: Greater than 1: ? Less than 1: ? Equal to 1: ?

Answer 36

Enlarged Reduced Same Size

Question 37

Magnification Equation

Answer 37

M= |(-) di/do|

Question 38

cut out of a spherical reflecting surface

Answer 38

spherical mirrors

Question 39

a ray coming on to the mirror parallel to the axis

Answer 39

Paraxial Ray