The ability of the human eye to focus object on the retina is referred to as the power of

Answer Details

The ability of the human eye to focus an object on the retina is referred to as the power of "accommodation". The human eye has a natural ability to adjust the shape of the lens so that it can focus on objects at different distances. This process is called accommodation. The lens changes its shape by the contraction and relaxation of the ciliary muscles that are attached to it. When we focus on a nearby object, the ciliary muscles contract, making the lens rounder, and when we focus on a distant object, the ciliary muscles relax, making the lens flatter. This adjustment in the shape of the lens allows the eye to focus light on the retina and form a clear image. The other options - "interference", "diffraction", and "superposition" - do not relate to the process of focusing an object on the retina. Interference refers to the combination of waves, diffraction refers to the bending of waves around obstacles, and superposition refers to the overlapping of waves. These concepts are not relevant to the functioning of the human eye. Therefore, the correct option is "accommodation".