Why might an object appear blurry under a microscope?

An object may appear blurry under a microscope for several reasons, including improper focus, insufficient lighting, or the presence of dust and debris on the lenses. If the specimen is too thick or not adequately prepared, it can also lead to a lack of clarity. Additionally, using the wrong objective lens or not aligning the optics properly can contribute to a blurry image. Proper technique and preparation are essential for achieving clear microscopy images.