Asingle-slit diffraction pattern is formed on a distant screen. assuming the angles involved are small, by what factor will the width of the central bright spot on the screen change if the distance from the slit to the screen is doubled? a single-slit diffraction pattern is formed on a distant screen. assuming the angles involved are small, by what factor will the width of the central bright spot on the screen change if the distance from the slit to the screen is doubled? it will become eight times as large. it will be cut to one-quarter its original size. it will be cut in half. it will become four times as large. it will double.