Worked examples: Overlapping fringes (two wavelengths) | Wave optics | Physics | Khan Academy

00:07 Example 1
00:45 Breaking down the question
01:19 Approach to solving the question
02:25 Solving for overlapping fringes
04:57 Example 2
05:52 Approach to solving the question
07:28 Solving for the least distance where dark fringes overlap

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