Question

The image type formed in the eyes of a cockroach is?

• A. Superposition
• B. Apposition
• C. Both A and B
• D. None of these

Answer 1

The correct option is A

Superposition

The correct option is A.

Explanations for the Correct option:

1. The cockroach is a nocturnal creature.
2. The image of nocturnal insects is created by the overlaying of images.
3. It is a hazy image.
4. Arthropods, which include insects and crustaceans, have vision organs called compound eyes.
5. The cockroach's eye is a composite type made up of several components termed ommatidium, the images created by retinulae that are present deep below the vitrellae and crystalline cone in nocturnal insects like cockroaches.
6. The pigment in many crustaceans and nocturnal insects is restricted to the area around the cone cells; the retinulae and rhabdom do not touch the cone.
7. Superposition eyes are those in which the ommatidia are not distinguished from one another by pigment.
8. In superposition, pictures are not crisp and form in low light.

Final answer: The image type formed in the eyes of a cockroach is superposition.