Question

A series of fast moving still pictures can create an illusion of movement because:
(A) the eye can focus on very rapidly changing pictures. (B) The eye is quicker than the brain. (C) eyes can separate two images only when the interval of separation between them is one-tenth of a second. (D) the optical cortex can see through the rapidly moving images.

Answer 1

Hint: Light invades the eye through the transparent cornea and then crosses along the aqueous humour, the lens, and then the vitreous humour, this is where it forms an image on the retina. The photoreceptors are stimulated by light when the image falls upon them and they produce electrical signals that are conveyed to the brain along the optic nerve.

Complete step by step answer:
The three phases of visual processing will determine internal noise appearance to an external observer. They are light adaptation, contrast gain control and a post sensory stage. The vision procedure begins when the light rays of an object we see pass along the cornea which is a clear dome-like structure, which is covering our eyes. These light rays will then proceed to a black opening called the pupil. The optic nerve will then hand over these signals to our brain, which then translates the signals into the images you see.

The human eye does not really have a highest speed, but it has a lapse of time through which it can see. We can see light which is the highest speed, but only when it is around for a definite quantity of time. A series of fast moving still pictures can create an illusion of movement because the eye can only separate two images only if and when the interval of separation between the two images is one-tenth of a second.

Therefore, the eye can separate two images only when the interval of separation between them is one-tenth of a second.

Hence the option (C) eye can separate two images only when the interval of separation between them is one-tenth of a second is the correct answer.

Note: Our brain can only do visual track or do a visual search of multiple direction, the brain can process or keep track of only $13$ images in a second through the continuous flow, therefore we will average the images that are remaining into one image