A laser emits a beam of light with a wavelength of 500nm which is incident upon a double slit and produces an interference pattern on a screen 20 m awayCentral Bright:BrightDouble Slib4.BandChoon3S107Surean20mLASERda) Determine the distance between the slits, a.(Hint: Determine the spacing between the bright bands)a =mmb) Determine the width of the slits, D.(Hint: Determine the position of the first diffraction minima.)D =mm

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