5) Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the longest wavelength? Why?
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The pattern is determined by the wavelength of the light and the width of the slit. The equation that relates the width of the slit (a), the angle of diffraction (θ), and the wavelength of the light (λ) is: a sinθ = mλ where m is an integer representing the Show more…
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