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A laser emits light that has a 6.38 x 102 nm wavelength. Upon reaching a double...

A laser emits light that has a 6.38 x 102 nm wavelength. Upon reaching a double slit apparatus that is 2 m from a screen you observe that there is a 0.05 m gap between the first nodal line and the seventh nodal line. How far apart are the slits? How many bright fringes will fit on the screen?

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2: 2 갯 2. X

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