Which optical outcome arose in Alhazen's pinhole experiments when the aperture size increased beyond the diffraction limit?

💡 Explanation

When the aperture exceeds the diffraction limit in a pinhole camera, geometric optics dominate because each point in the aperture acts as a source, causing blurring. Therefore a brighter yet blurry image results, rather than sharper images, darker images from light reduction, or coloured fringes, which necessitate other optical phenomena like interference or diffraction.

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