multiple questions on human eye and colorful world

Introduction - The human eye uses light and enables us to see objects around u..

The eye lens converges these light rays to form a real, inverted and diminished image on the retina. The light sensitive cells of the retina gets activated with the incidence of light and generate electric signal..

- Accommodation of the Eye The process by which the ciliary muscles change the focal length of an eye lens to focus distant or near objects clearly on the retina is called the accommodation of the eye. Power of Accommodation The ability of the eye to focus ob..

One of the most complicated optical devices is the human eye. Let us see the construction of the human eye and then the mechanism of image formation. Human eye is spherical in shape and diameter of about 2.5cm. Sclerotic is a tough, opaque..

The Eye - Our eye is the most important natural optical instrument. The eye is nearly spherical in shape with a slight bulge in the front par..

How do We See Colors? - The retina of our eye is composed of light sensitive cells. Light sensitive cells are of two types namely, rods and cones. There are three types of cones., those that are stimulated by low frequencies, those stimulated by intermediate frequencies and thos..

The ability of the eye to focus objects lying at different distances is called the power of accommodation of the eye. How Does an Eye Focus Objects at Varying Distances? To focus on distant objects the ciliary muscles relax making the eye lens thin. As..

. One of them pressed the button that closed the glass wall. The food bowl jammed it which caused a gap. Ch-tsal then escaped into the human world through this gap. Ch-tsal sensed that he could breathe in the air and the temperature was pleasant. He would have sent a message of ..

You must have seen some people holding books very close to their eyes. This is because they suffering from myopia (short sightedness). A myopic person cannot see distant objects clearly because the far point of his eye is less than infinity. Myopia is an eye defect du..

You must have seen middle aged people holding a book away from their eyes to read properly. This is because they are not able to see the nearby objects clearly. We say that those people are suffering from hypermetropia (long sightedness). Hypermetropia or hyperopia is an eye..