Mirrors, Lenses and Images

Question 1

Regular reflection is the _______________ reflection of light on a(n) _______________
surface.

Answer 1

even, smooth

Question 2

Diffuse Reflection is a(n) ________________ reflection of light rays on a
_______________ surface.

Answer 2

uneven, rough

Question 3

the center of
the sphere whose surface forms the
curved mirro

Answer 3

Center of Curvature (C)

Question 4

where the light rays
meet

Answer 4

Focal Point (F)

Question 5

the point where the
principal axis meets the mirror

Answer 5

Vertex, V

Question 6

the straight line
passing through the center of
curvature to the mirror

Answer 6

Principal Axis

Question 7

the distance from
the focal point to the vertex

Answer 7

Focal length, f

Question 8

the distance
from the vertex to the center of the
curvature

Answer 8

Radius of Curvature, R

Question 9

Thicker at the center, as
compared to its edges.

Answer 9

Convex Lebs

Question 10

Thinner at the center as
compared to its edges.

Answer 10

Concave lens

Question 11

Real and Inverted image.
Also produces virtual, erect
and enlarged image in a
magnifying glass.

Answer 11

Convex Lens

Question 12

Virtual, erect and diminished
image.

Answer 12

Concave Lens

Question 13

Correct hyperopia

Answer 13

Convex Lens

Question 14

Correct myopia

Answer 14

Concave Lens

Question 15

The image you see in a plane mirror is called a _______________ image because it
is not a real, physical object.

Answer 15

Virtual

Question 16

If the angle of incidence between the incident ray and the normal line is 25 degrees,
what is the angle of reflection

Answer 16

25 Degrees

Question 17

The image formed by a concave mirror will ____________

Answer 17

Either be real or virtual

Question 18

The image formed by a convex mirror will _______________ .

Answer 18

Always be virtual

Question 19

What kind of lens curves inward toward its center?

Answer 19

Concave

Question 20

Which mirror concept explains why the word AMBULANCE is written in
reverse in an ambulance car?

Answer 20

Lateral Inversion

Question 21

What kind of mirror is used in the side mirrors of automobiles and trucks to
give the driver a wider area and smaller image of traffic behind him?

Answer 21

Convex Mirror

Question 22

The sun’s rays are observed to focus at a point behind a lens. What kind of
lens was used?

Answer 22

Converging Lens

Question 23

What kind of image is formed by concave lenses?

Answer 23

could be real or virtual; depends on the distance of the object from the
focal point

Question 24

What part of the camera corresponds to the retina of our eyes?
a. aperture
b. shutter
c. iris diaphragm
d. photographic film

Answer 24

Aperture

Question 25

Convex mirror, also known as ________ mirror, is another type of spherical mirror which has the outer bulging surface that reflects light instead of the inner one

Answer 25

Diverging Mirror

Question 26

The lens, just like the _____ of our eyes gathers and bends light rays inwardly to the camera

Answer 26

Cornea