Physics, 07.03.2020 01:26, shakiyahjones99441

For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. When she shines a laser pointer (λ=680nm) through the slit onto a screen 5.5 m away, a diffraction pattern appears. The bright band in the center of the pattern is 7.9 cm wide. What is the width of the slit? answer in mm.

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For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil....