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Physics, 25.04.2020 05:08 sarahnd6907
Your friend has been given a laser for her birthday. Unfortunately, she did not receive a manual with it and so she doesn't know the wavelength that it emits. You help her by performing a double-slit experiment, with slits separated by 0.18 . You find that two adjacent bright fringes are 4.9 apart on a screen 1.4 mm from the slits.
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