How can "ali" distinguish the interference patterns produced by diffraction gratings from the interference patterns produced by a double-slit?
the interference pattern from a diffraction grating will have a wide, central bright band with alternate dark and bright bands on both sides, and the interference pattern will have an equally spaced dark and bright band.
the interference pattern from a diffraction grating will have a wide, central dark band with bright and dark bands on both sides, and the interference pattern will have bright narrow lines between dark bands.
the interference pattern from a diffraction grating will have narrow, equally spaced bright lines, and the interference pattern will have bright and dark bands.
the interference pattern from a diffraction grating will have narrow, equally spaced bright lines, and the interference pattern will have a wide central bright band with dark and bright bands on either side.
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