The image formed in insects by the compound eyes is either [[1]] or [[2]].

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answer is APPOSITION , SUPERPOSITION.

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Detailed Solution

The image formed in insects by the compound eyes is either apposition or superposition.

The compound eyes are the visual organs that are found in arthropods e.g. insects. They can form either apposition images or superposition images with the help of the lenses.

Apposition: Each ommatidium focuses only on rays coming from the bright light that is almost parallel to its long axis. The image of the whole results from a combination of these part images.

Superposition: The sensory cells of an ommatidium pick up light from a large part of the visual field. The image received may overlap those received.

The superposition image is more bright but less sharp compared to the apposition image.

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