Jeopardy
PHY101
Chapter 9 Review
Study of Optics
Cheryl Dellai
Study of Optics
Photons
Reflection
&
Refraction
Mirrors
Lenses
Effects
Potpourri
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Photons
$100
What is a photon?
ANSWER
Photons
$200
What is the energy of a
photon?
ANSWER
Photons
$300
What can happen to a photon
as it moved from one medium
to another.
ANSWER
Photons
$400
What is the index of refraction?
ANSWER
Reflection & Refraction
$100
State the Law of Reflection.
ANSWER
Reflection & Refraction
$200
State the Law of Refraction.
ANSWER
Reflection & Refraction
$300
Why are optical fibers
important for communication?
ANSWER
Reflection & Refraction
$400
Certain types of sunglasses are
very effective at diminishing
light reflected from surfaces
because of __________.
ANSWER
Mirrors
$100
The direction of light is _____?
ANSWER
Mirrors
$200
Name 3 types of mirrors
ANSWER
Mirrors
$300
What is the mirror equation?
ANSWER
Mirrors
$400
What is the magnification
equation?
ANSWER
Lenses
$100
Choose the lens having the
shortest focal length.
ANSWER
Lenses
$200
What is a Diopter?
ANSWER
Lenses
$300
What is the thin lens equation?
ANSWER
Lenses
$400
A person looking through
eyeglasses sees ________ &
_________ images.
ANSWER
Effects
$100
Liquid crystal displays make
use of __________.
ANSWER
Effects
$200
Light spreads out when it
passes through a narrow slit
because of __________.
ANSWER
Effects
$300
When light passes through two or
more narrow slits, an alternating
dark and bright pattern is
observed on a screen because of
_________.
ANSWER
Effects
$400
The sky is blue because of
________.
ANSWER
Potpourri $100
Optical fibers work because of
_______.
ANSWER
Potpourri $200
You see colors in a rainbow
because of _________.
ANSWER
Potpourri $300
A ________ lens is used to
compensate for hyperopia
(farsighted).
ANSWER
Potpourri $400
When myopia (nearsighted) is
corrected surgically, the shape
of the ________ is changed.
ANSWER
Photons
$100
Answer
What is a photon?
A photon is a wave packet of light.
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Photons
$200
Answer
What is the energy of a photon?
Energy = hf
Planck’s Constant h = 6.63*10-34 J*s
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Photons
$300
Answer
What can happen to a photon as it
moved from one medium to another.
Absorbed
Reflected
Refracted
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Photons
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Answer
What is the index of refraction?
n = c/v
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Reflection & Refraction
$100
Answer
State the Law of Reflection.
Angle in = Angle out wrt to the normal
normal
q
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q
Reflection & Refraction
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Answer
State the Law of Refraction.
n1sinq1 = n2sinq2
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Reflection & Refraction
$300
Answer
Why are optical fibers important for
communication?
They can carry thousands of times the information
that wires can.
This is the result of internal refraction.
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Reflection & Refraction
$400
Answer
Certain types of sunglasses are very
effective at diminishing light
reflected from surfaces because of
polarization.
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Mirrors
$100
Answer
The direction of light is positive?
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Mirrors
$200
Answer
Name 3 types of mirrors
Flat
R = infinity
Concave R = +
Convex R = -
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Mirrors
$300
Answer
What is the mirror equation?
s-1 + p-1 = 2/R = f-1
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s = source
p= projection
Mirrors
$400
Answer
What is the magnification
equation?
s = source
p= projection
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Lenses
$100
Answer
Choose the lens having the
shortest focal length.
A The thickest in the middle has the shortest focal length.
These are all positive (converging) lenses
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Lenses
$200
Answer
What is a Diopter?
DO =1/f where f is in meters
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Lenses
$300
Answer
What is the thin lens equation?
s-1 + p-1 = f-1 =(n2/n1 -1)*(1/R1 – 1/R2) s = source
p= projection
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Lenses
$400
Answer
A person looking through eyeglasses
sees virtual & erect images.
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Effects
$100
Answer
Liquid crystal displays make
use of polarization.
Back to Jeopardy
Effects
$200
Answer
Light spreads out when it
passes through a narrow slit
because of diffraction .
Back to Jeopardy
Effects
$300
Answer
When light passes through two or
more narrow slits, an alternating
dark and bright pattern is
observed on a screen because of
interference.
Back to Jeopardy
Effects
$400
Answer
The sky is blue because of
scattering .
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Potpourri $100
Answer
Optical fibers work because of
total internal reflection.
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Potpourri $200
Answer
You see colors in a rainbow
because of dispersion.
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Potpourri $300
Answer
A converging lens is used to
compensate for hyperopia
(farsighted).
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Potpourri $400
Answer
When myopia (nearsighted) is
corrected surgically, the shape
of the cornea is changed.
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Study of Optics
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