After the Mirror tutorial, how would you answer the
question “Does the image location change as you
move your head from side to side?”
A. Yes
B. No
C. Other
D. Did not agree with group
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After the Mirror Tutorial, where did you decide the
image is located?
A. On the surface of the mirror
B. Behind the mirror
C. In front of the mirror
D. Did not decide
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© 2010 Pearson Education, Inc.
© 2010 Pearson Education, Inc.
The image of the stone seen by observer 1 is at point C.
Where does observer 2 see the image?
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The image of the stone seen by observer 1 is at point C.
Where does observer 2 see the image?
I’m assuming the
reflective surface
is the front
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© 2010 Pearson Education, Inc.
© 2010 Pearson Education, Inc.
Method of Parallax
Say you drop a piece of paper on the table, line your
eye up at table level and place your finger on the table.
You want to use the method of parallax to determine if
you placed your finger in front of or behind the paper.
You move your eye to the left and your finger appears
to move to the left of the paper. This means your
finger is
A. In front of the paper
B. Behind the paper
C. On top of the paper.
© 2010 Pearson Education, Inc.
Method of Parallax
Say you drop a piece of paper on the table, line your
eye up at table level and place your finger on the table.
You want to use the method of parallax to determine if
you placed your finger in front of or behind the paper.
You move your eye to the left and your finger appears
to move to the left of the paper. This means your
finger is
A. In front of the paper
B. Behind the paper
C. On top of the paper.
© 2010 Pearson Education, Inc.
© 2010 Pearson Education, Inc.
© 2010 Pearson Education, Inc.
Two plane mirrors form a right angle. How many
images of the ball can you see in the mirrors?
A. 1
B. 2
C. 3
D. 4
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Two plane mirrors form a right angle. How many
images of the ball can you see in the mirrors?
A. 1
B. 2
C. 3
D. 4
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Can Venus see her own face in the mirror, when the
mirror is held as shown?
A. No
B. Yes
C. Possibly
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Can Venus see her own face in the mirror, when the
mirror is held as shown?
A. No
B. Yes
C. Possibly
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She sees the painter’s face
A light ray travels from medium 1 to medium 3 as
shown. For these media,
A. n3 > n1
B. n3 = n1
C. n3 < n1
D. Not enough information
© 2010 Pearson Education, Inc.
A light ray travels from medium 1 to medium 3 as
shown. For these media,
A. n3 = n1
B. n3 > n1
C. n3 < n1
D. Not enough information
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Total Internal Reflection
© 2010 Pearson Education, Inc.
Slide 18-21
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© 2010 Pearson Education, Inc.
© 2010 Pearson Education, Inc.
While under water, can the lady see everything that
she could if her head were above water? (shore or
a ship out to sea)
A. No depends on the angle
B. Yes
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While under water, can the lady see everything that
she could if her head were above water? (shore or
a ship out to sea)
A. No depends on the angle
B. Yes
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Can anyone on the water
see the lady under the
water?
A. No depends on the angle
B. Yes
© 2010 Pearson Education, Inc.
Can anyone on the water
see the lady under the
water?
A. No depends on the angle
B. Yes
Calculate this angle if the
index of refraction of salt
water is 1.34
48.2o
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