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1. A magnifying glass is a
A.
B.
C.
converging lens.
diverging lens.
combination of diverging and converging
lenses.
2. An image formed by a single diverging lens
A.
B.
C.
D.
E.
is larger than the object.
can be projected on a wall.
is upside down.
is virtual.
all of the above
3. An image of a distant object formed by a single
converging lens
A.
B.
C.
D.
E.
is upside down.
can be focused on a screen.
is real.
can be projected on a wall.
all of the above
4. A converging lens
A.
B.
C.
D.
E.
refracts parallel rays of light.
converges parallel rays of light.
bends parallel rays of light so they cross at
a single point.
is thicker in the center than at the edges.
all of the above
5. Suppose you hold a converging lens in front
of a window. An image of some distant hills
can be focused on your hand, behind the
lens. The focal point of this lens is located
A.
B.
C.
behind your hand.
approximately at your hand.
in front of your hand.
6. If an object is located between the focal
point and a converging lens, the image will be
A.
B.
C.
D.
E.
upside down.
larger than the object.
real.
all of the above
none of the above
7. In drawing a ray diagram, rays can be drawn
A.
B.
C.
D.
E.
through the center of the lens.
through the focal point in front of the lens.
parallel to the principal axis of the lens.
from the tip of the object arrow.
all of the above
8. Ray diagrams are used to
A.
B.
C.
D.
E.
find the focal point of a lens.
draw pretty pictures.
figure out where an image will be located
figure out what kind of lens is being used.
all of the above
9. Huygens' principle says that
A.
B.
C.
D.
E.
when light passes through two narrow slits,
it produces an interference pattern.
when the crests of waves overlap, their
individual effects add together.
light waves bend slightly when passing
through an opening.
all points on a wave front are connected.
each point on a wave front acts as a new
source of wavelets.
10. Suppose you stand 3 m in front of a flat
mirror. How far away from you is your image?
A.
B.
C.
D.
E.
6 m.
3 m.
1 m.
1/3 m.
1/6 m.
11. The image your eye receives is
A.
B.
right-side up.
upside down.
12. Which instrument is a human eye most
similar to?
A.
B.
C.
D.
microscope
telescope
camera
projector
13. Monochromatic light refers to light that is
A.
B.
C.
D.
E.
one color.
a chrome color.
red.
white.
all of the above
14. When monochromatic light shines through
two closely spaced narrow slits and onto a
screen some distance away, the pattern on
the screen has
A.
B.
C.
D.
E.
alternating dark and light bands.
no light in it.
one large bright spot.
two large bright spots.
none of the above
15. Destructive interference occurs when
A.
B.
C.
D.
E.
the crests of two waves overlap.
the crest of one wave meets the trough of
another wave.
two waves of the same color overlap.
all of the above
none of the above
16. Colors seen when gasoline forms a thin
film on water are a demonstration of
A.
B.
C.
D.
E.
refraction.
diffraction.
dispersion.
interference.
polarization.
17. An interference pattern is produced when
A.
B.
C.
D.
E.
light passes through two narrow slits.
two or more light waves meet.
the crests of two waves meet.
the troughs of two waves meet.
all of the above
18. Interference can be shown by using
A.
B.
C.
D.
E.
sound waves.
water waves.
light waves.
all of the above
none of the above
19. Light emitted by a laser is
A.
B.
coherent.
incoherent.
20. Coherent light is many different rays of
light all having the same
A.
B.
C.
D.
E.
direction.
wavelength.
frequency.
phase.
all of the above
21. An object is placed in front of a convex lens as
shown below.
Which ray(s) will pass through the right focal point, F,
after refraction?
A.
B.
C.
D.
E.
1 only
both 1 and 2
1, 2, and 3
2 only
3 only
22. Which one of the following pairs of terms best
describes the image formed by the lens in the ray
diagram above?
A.
B.
C.
D.
real, upright
real, inverted
virtual, inverted
virtual, upright
23. Which of the following photons have the
greatest energy?
A.
B.
C.
D.
E.
green light
ultraviolet
yellow light
blue light
red light
24. A photocell can be activated with blue light
but not with red light. This is because blue
light has
A.
B.
C.
D.
E.
a higher frequency than red light.
a longer wavelength than red light.
a higher speed than red light.
a stronger electric field than red light.
none of the above.
25. The photoelectric effect best demonstrates
the
A.
B.
C.
D.
wave nature of light.
particle nature of light.
both A and B
none of the above
26. Light behaves as a
A.
B.
C.
D.
particle.
wave.
both A and B
none of the above
27. Which of the following forms an
interference pattern when directed towards
two suitably spaced slits?
A.
B.
C.
D.
E.
Sound
Light
Electrons
all of the above
none of the above
28. When an atomic electron goes from a highenergy state to a low-energy state, it
A.
B.
C.
emits a photon.
absorbs a photon.
neither absorbs nor emits a photon.
29. Electron wavelengths, in general, are
A.
B.
C.
longer than light wavelengths.
the same as light wavelengths.
shorter than light wavelengths.
30. A beam of electrons has
A.
B.
C.
D.
wave properties.
particle properties.
both A and B
none of the above
31. The energy states available to an electron
are
A. quantized.
B. continuous.