PASCO OS-8500 INTRODUCTORY OPTICS SYSTEM - Manual (Page 60)

Introductory Optics System 012-02744K
®
54
Exp 3: Image Formation in a Plane Mirror
Suggestions on – Procedure
➀
The rays seem to follow straight lines into and out
of the mirror. The ones coming out of the mirror
seem to be coming from a second filament behind
the mirror plane.
➁
In the test setup used, the distance from the fila-
ment to the mirror plane was 10.8 cm. The dis-
tance from the image of the filament to the mirror
plane was 10.3 cm.
➂
The image and object are equidistant from the mir-
ror plane.
Answers to – Questions
➀
The room will appear to be twice its actual size.
➁
➂
The sizes are the same.
mirror
reflection is inverted
Exp 4: The Law of Refraction
Suggestions on – Procedure
➀
The ray is not bent either time it goes through the
surface, as long as it goes through perpendicular to
the surface.
➁
The results are roughly the same: slight differences
are due to the lens not being centered exactly.
Angle of: Incidence Refraction 1 Refraction 2
0 0.0 0.0
10 7.0 6.5
20 13.5 13.5
30 20.0 20.0
40 25.5 25.5
50 31.0 31.0
60 35.5 35.5
70 39.0 39.5
80 41.0 41.0
90
G
G
G
G
G
G
G
G
G
E
E
E
E
E
E
E
E
E
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
G data set 1
E data set 2
slope = 1.504
Index of Refraction
Sine of incident angle
Sine of refracted angle