A2L Item 300

• Description:
• Goal:
• Source:
• Keywords: Light Waves

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The question for students:

Two light rays will interfere only if:

1. They are both of the same wavelengths
2. They are both traveling in the same direction
3. They are traveling in opposite directions
4. They are both from the same source
5. They are both of the same polarization
6. They both have the same phase
7. Something else

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Commentary for teachers:

No commentary available.

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