Annual Examinations For Secondary Schools Physics Worksheet - 2012 Page 5
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127.
The diagram below shows a sign C in the corridors of a clinic. Petra can see the image of the
sign C in the plane mirror MM’ from P but Andrea cannot see it from Q.
• • • •
C
P
Q
• • • •
• • • •
M
M’
a.
i.
On the above diagram draw a ray from C which reaches P after reflection at the plane
mirror.
(2)
ii.
Draw the Normal at the plane mirror.
(1)
iii.
What can be said about the size of the angle of incidence and the angle of reflection?
________________________________________________________________________________
(1)
b.
On the above diagram, draw a ray diagram to show the position of the image of the sign C.
(2)
c.
What can be said about the:
i.
image distance and the object distance of the sign C,
________________________________________________________________________________
(1)
ii.
type of image produced. _____________________
(1)
d.
Why does Petra find it difficult to read the sign?
________________________________________________________________________________
(1)
e.
Explain why Andrea cannot see the image of the clinic sign C from Q.
________________________________________________________________________________
(1)
Physics – Secondary Schools - Track 2 – Form 5 – 2012
Page 5 of 12
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