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The human eye is an organ which reacts to light for several purposes.
As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allows conscious light perception and vision including color differentiation and the perception of depth.
non-image-forming photosensitive ganglion cellsganglioncells in the
The cornea and sclera are connected by a ring called the limbus. The iris – the color of the eye – and its black center, the pupil, are seen instead of the cornea due to the cornea's transparency. The fundus (area opposite the pupil) shows the characteristic pale optic disk (papilla), where vessels entering the eye pass across and optic nerve fibers depart the globe.
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The retina of the human eye has 3 receptors for colors called cones. One of the cone measures red light, another measures green light and the third measures light intensity. This information is further processed by the occipital lobes in our brain, as color by deducing the amount of blue light from the above mentioned 3 factors.
How are we using these waves in our everyday life?
we hear?
The human body has several unique processes and hearing is one of them. When a noise is made a vibration or sound wave travels through the air. When this hits the ear it vibrates allowing our brain to interpret that and we hear.
How do we see?

Yes. If light is going through water for example and then hits air the beam of light refracts or bends in accordance with the new change in speed and direction.
How do we make colours?
The retina of the human eye has 3 receptors for colors called cones. One of the cone measures red light, another measures green light and the third measures light intensity. This information is further processed by the occipital lobes in our brain, as color by deducing the amount of blue light from the above mentioned 3 factors.
How are we using these waves in our everyday life?
we hear?
The human body has several unique processes and hearing is one of them. When a noise is made a vibration or sound wave travels through the air. When this hits the ear it vibrates allowing our brain to interpret that and we hear.
How do we see?
Scientifically, you see through your pupil. The lens covers the pupil, flipping every image we see right-side up. Without the lens, we'd be seeing everything upside down.

Sound
Speed of sound:The speed of sound is 340.29 m/s at sea level, but at higher altitude this speed differs.
When a plane flys above you at high speeds and lower altitudes, the direction of the sound doesn't seem to be coming from the plane, because the height difference means that the time it takes for the sound to hit the ground, the object (or in this case plane) can be in a totally different space than were the sound is coming from.
Vibration: An oscillation of a liquid or solid which is pliant and flexible enough for such motions to be dispersed throughout it or a electromagnetic wave.
A good example of sound vibration is when you are listening to music and you turn it up really loud, your computer (or whatever object you are listening to), starts to vibrate, and can often vibrate other things around it.
Pitch: The quality of a sound produced and controlled by the rate of vibrations subjected to it; the degree of highness or lowness of a tone.
An opera singer is a good example of pitch, as when they reach the high point of the song, they start to sing at a higher point, but at sad times in the song etc. the pitch is a lot lower. This is a good way of manipulating pitch for the pleasure of other humans.
Echoes: A repetition of a sound after the original sound wave is reflected back to the angle of the object it hit.
When you yell into an large empty space, you will most likely hear the sound again, and possibly multiple times in a short amount of time. This is because the sound keeps reverberating against the wall, meaning that the sound will keep returning to you until it has lost its energy.
Doppler Effect: The difference in frequency or wavelength of a wave that is perceived by a listener moving relative to the sound or vise versa.
When you see a ambulance behind with its siren on it appears to be quite loud, but when it passes you, the sound quietness a lot faster than the speed it rose. This is even more noticeable when you drive past an ambulance with its sirens on in the opposite direction.
Resonance: The tendency of an oscillation to vibrate at different and larger amplitudes at frequencies. These are known as resonant frequencies.
If you take two guitars both tuned the same and place them side by side, when you pluck the A string on one guitar you will ser the A string on the other guitar start to vibrate as well.

Frequency: The number of times a specified.
Oscillation: An act or instance of oscillating.
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The Eye:
The human eye is an organ which reacts to light for several purposes.
As a conscious sense organ, the eye allows vision. Rod and cone cells in the retina allows conscious light perception and vision including color differentiation and the perception of depth.
The human eye can distinguish about 10 million colors. In common with the eyes of other mammals, the human eye's non-image-forming photosensitive ganglion cells in the retina receive the light signals which affect adjustment of the size of the pupil, regulation and suppression of the hormone melanin and entrainment of the body clock. The eye is not properly a sphere, rather it is a fused two-piece unit. The smaller frontal unit, more curved, called the cornea is linked to the larger unit called the sclera. The corneal segment is typically about 8 mm (0.3 in) in radius.
The cornea and sclera are connected by a ring called the limbus. The iris – the color of the eye – and its black center, the pupil, are seen instead of the cornea due to the cornea's transparency. The fundus (area opposite the pupil) shows the characteristic pale optic disk (papilla), where vessels entering the eye pass across and optic nerve fibers depart the globe.
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