3B Scientific SEK Optics - Manual (Page 23)

Exercise
Examine the features of images on a plane mirror!
What do we need?
1 Base plate
1 Plexiglass plate
2 Tea lights
1 Mask
additionally required:
1 Ruler
Conducting the experiment
1. Attach the mask to the base plate!
2. Place the Plexiglas plate onto the centre of the base plate as marked on the mask!
3. Put a tea light in front of the plate (mask)! Observe the mirror image of the tea light!
4. Light the tea light and observe the mirror image! Record the features of the mirror image of the
burning tea light!
5. Place the second non-burning tea light behind the Plexiglas plate where you see the mirror image!
Record your observations and draw the position of the tea light on the mask!
6. Now move the burning tea light in front of the Plexiglass plate approx. 3 cm to the right! Observe
the mirror image of the burning tea light!
7. Make a note of what you have to do to see the mirror image of the burning tea light at the same
place as the non-burning tea light behind the pane!
8. Determine the distance of the tea light in front of the Plexiglas plate and behind the Plexiglas plate!
Enter the measured values in the table! Mark the positions of the first and the second candle on
the mask!
9. Name features of the mirror image!
ELWE Physical experiments for education in natural science and engineering
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1 SEG - OP 2.5 Images on a Plane Mirror