Help pls points 1
The bouncing of light off an object that has an irregular surface is
called
a. diffuse reflection
b. regular reflection
c. refraction
d. diffraction
2
Light passing into the eye is normally made to converge on the
a. iris
b. pupil
c. lens
d. retina
3
A concave mirror
a. is transparent
b. is flat
c. has a surface that curves outward, like the surface of a ball
d. has a surface that curves inward
4
A lens that causes light to converge is
a. concave
b. convex
c. flat
d. planar
5
Which of the following is used to reflect light?
a. mirror
b. lens
c. fluorescent tube
d. prism
6
A lens that is used to correct farsightedness is
a. concave
b. convex
c. flat
d. planoconcave
7
An object that readily transmits light without distorting the images
of objects seen through it is
a. translucent
b. opaque
c. transparent
d. diffuse
8
The light waves produced by a laser are
a. of the same frequency
b. of the same color
c. in phase
d. all of these
9
A three-dimensional image is called a (an)
a. optical fiber
b. hologram
c. laser
d. phosphor
10
A long, thin flexible length of glass or plastic used to transfer
light is called a (an)
a. optical fiber
b. hologram
c. laser
d. phosphor
11
Light whose waves vibrate along a single plane is called .
12
A mirror with a surface that curves outward, like that of a ball
is said to be .
13
The distance between the center of a mirror and the focal point is
called the .
14
A glass or plastic object with at least one curved surface that is
used to spread out light rays is called a (an) .
15
are replacing electric wires in communications systems such
as telephone systems.
16
When the three primary pigments are mixed in equal amounts, the
resulting color is white.
a. true
b. false
17
The colored area surrounding the pupil of the eye is called the iris.
a. true
b. false
18
An opaque object does not allow any light to pass through it.
a. true
b. false
19
A concave lens is used to correct farsightedness.
a. true
b. false
20
A telescope that makes use of mirrors to gather light is called a
refracting telescope.
a. true
b. false