3B Scientific SEK Optics - Manual (Page 21)

Exercise
Examine how the light is reflected on the convex mirror!
What do we need?
1 Optical lamp
with power supply unit
1 Base plate
1 Universal mirror
1 Three-slot aperture
1 Mask
additionally required:
1 Compasses
1 Ruler
Conducting the experiment
1. Attach the mask to the screen!
2. Place the optical lamp on the left side of the base plate, so that the light emerges parallel to the
right!
3. Place the screen in front of the optical lamp! Insert the three-slot aperture into the aperture holder!
4. Place the universal mirror on the screen and bend it as marked on the mask!
5. Mark the position of the focal point. Mark it “F”!
6. Record your observations on the three parallel incident beams of light after the reflection! Draw the
beams on the mask! Mark the point where the rear projections of the reflected beams cross the op-
tical axis!
7. Bend the convex mirror as sketched! Transmit the beams onto the sketch!
8. Name practical applications for the use of convex mirrors!
ELWE Physical experiments for education in natural science and engineering
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1 SEG - OP 2.4 Reflection and Beam Paths on a Convex Mirror