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  Home   >   Optics & Wave   >   Experiment    

Diffraction and Interference of Light Waves

1. Connect the datalogger interface to a PC with the software installed.

2. Connect the light sensor to the appropriate channel of the interface. See Figure 1.

- Figure 1-

3. Set up a light source at one end of the table.
4. Place a card with double slits in front of the light source. The distance between the slits is very small compared to the distance between the slits with the light sensor.

5. Place the light sensor at the other end of the table.

6. Start the data-logging software to collect data.

7. Move the light sensor at a horizontal level and keep a constant distance between the sensor and the slits when recording the data.

8. Stop the data collection.

9. Observe a single-slit and a double-slit pattern.














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