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$$ SERPSE$1037\mathrm{.}2\mathrm{.}0$P$\mathrm{.}008.$

$$

A laser beam is normally incident on a single slit with width $0\mathrm{.}630$ mm $.$ A diffraction pattern forms on a screen a distance $1\mathrm{.}25$ m beyond the slit. The distance between the positions of zero intensity on both sides of the central maximum is $2\mathrm{.}26$ mm $.$ Calculate the wavelength of the light $($in nm $).$

nm

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