Introduction to Physics 213

This course focuses on electricity and magnetism, but we will spend one week studying some aspects of the interference of light. All aspects can be understood if one remembers that

• if two light waves meet in phase, they interfere constructively (yielding a bright spot)
• if two light waves meet out of phase, they interfere destructively (yielding a dark spot)

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Copyright © Michael Richmond. This work is licensed under a Creative Commons License.