Basic Idea:

• Observe interference fringes; calculate time delays.

• 6 

What:	How Many:	Where:
Low-tech interferometer	1	non-Majors storeroom, shelf MM2
Mercury lamp	1	Majors storeroom, shelf L5
Mercury lamp holder	1	non-Majors storeroom, shelf MM3

Computers Needed?

• No.

• Lab Setup:

  

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• Adjust interference pattern until you see a "bullseye", or something close to it.

• The interferometer:

  

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• Mercury lamp on holder