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Laser Diffraction (OP-C-LD)

Laser Diffraction (OP-C-LD)

Demonstrates diffraction by the use of single and double slits.


1.  Spectra Physics 248 high-powered laser & power supply strapped to white board w/ magnet strip & lab jack
2.  2 Magnetic carriages
3.  Single and double-slit slides     (optics kit)
4.  Wire & hair taped to magnetic carriage.
5.  Magnetic base adjustable single slit
6.  Paper screen

Place optics kit on the cart so that slides can be put back into the proper slits in the same box they were taken from.

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    1.  Set the laser & support in front of elevated screen as shown.
    2.  Put the single slit slide on the magnetic carriage.  Adjust the slide position to allow laser to shine through the slit and onto the screen.  When alignment is complete to show the pattern well on the screen, remove the screen so that the pattern can be seen by all high on a wall.
    3.  Substitute the double slit for comparison.  The adjustable slit can also be shown.
    4.  Substitute the wire & hair carriage to show the diffraction pattern around the hair strand or wire.