why cannot we see the colours beyond red and violet?

Answer 1

cause beyond red there are infrared rays and beyond violet there are ultra violet rays.they are invisible to human eyes

Answer 2

It's just the way we evolved. The sun emits radiation in many wavelengths, and those frequencies happen to get through earth's atmosphere. Some creatures can see ultraviolet because it is useful to them, bees for example. Others such as snakes are very heat-sensitive and can detect infrared quite well.

As it turns out, the range of human vision is just under one octave or doubling of wavelength: violet light is almost twice the frequency of red light. We can hear several octaves of sound, however, and can tell the difference between middle C and high C - they sound the same but also different. Try to imagine another octave of light; what would "the same but different" look like?

Answer 3

We can see only those colours viz. wavelength is capable for the retina of our eyes .so,we cant see the colours beyond red and violet

Answer 4

I think an interesting point here is to mention that the world is not as you see it. We can only perceive a tiny part of the electromagnetic spectrum, and this constitutes our vision of the world.

Think of the alien in the Predator movies. He perceived the world in completely different ways. A hot black surface is absorbing all light to our limited eyes, but it is blazing in the infrared. A block of refined uranium is a lump of grey metal to us, but is blazing in the gamma ray range.

Keep that in mind the next time you burn your hand on a hot plate!

Answer 5

we humans can only see 7 colors and any variation of them. This range is called the visible spectrum. we cannot see colors beyond violet and red is because the wavelengths of these colors are ewither too high or too low.

Answer 6

Since the sight is due to rods and cones cells in our body.Our body lacks those cells which are present in bees so a bee can see UV rays whereas we can't.Our eyes only have the capacity to work with visible light ie VIBGYOR.

Answer 7

Because our eyes do not have cone shaped cells that respond to ultraviolet radiations of wavelength less than 400 nm ( nanometre) and infrared radiations of wavelength greater than 700 nm.

Answer 8

Colorus (as you spelled it) are composed in wavelenghths of light called nanowaves. (Different colors have different wavelenghths.) The infared and ultraviolet (as you ment to say) have wavelengths undetectable by our optic sensors known as our eyes. But we know the ultraviolet is there. Just ask the people with skin cancer. Infared is hot light. It helps detect things in the dark.

Answer 9

Its not that we can't "see" them (in the sense of them entering the eye), but that our eye-brain structure can only respond to certain frequencies (commonly called wavelengths). That range of frequencies corresponds to the well known ROYGBIV, which we identify consciously - ie. learned behavior.

Answer 10

bcoz our eyes do not contains cone shaped cells which is responsible for seeing beyond visible region..