ch35-p070 - 70. By the condition m = 2y where y is the...

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70. By the condition m λ = 2 y where y is the thickness of the air-film between the plates directly underneath the middle of a dark band), the edge of the plates (the edge where they are not touching) are y = 8 λ /2 = 2400 nm apart (where we have assumed that the middle
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