Concept explainers
Light of wavelength 632.8 nm illuminates a single slit, and a diffraction pattern is formed on a screen 1.00 m from the slit. (a) Using the data in the following table, plot relative intensity versus position. Choose an appropriate value for the slit width a and, on the same graph used for the experimental data, plot the theoretical expression for the relative intensity
where ϕ = (πa sin θ)/λ. (b) What value of a gives the best fit of theory and experiment?
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Physics for Scientists and Engineers With Modern Physics
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