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Color
The wavelength is too long to be seen by our eyes.
If you can see the light reflected, then it has hit your eyes, and your brain is processing it as the sense of sight, if you cannot see it, then it has reflected somewhere other than your eyes-IE; back into space, or it is a wavelength of light that the human eye cannot detect.
Light is part of the electromagnetic radiation spectrum. It is the range of the spectrum that the human eye can see. It's wavelength goes from about 380 nm to about 740 nm. The different colors of light belong to different wavelengths. You'll find violet on the short wavelength side and red on the long wavelength side. Below the wavelength of 380 nm you find Ultra Violet light and above 740 nm you find the Infra red light, both not visible to the human eye.
Simply put yes. Color is determined by our interpretation of light that is receive in our eyes. Colors can be created in various ways with various combinations of specific wavelengths of light. In addition each color can be represented by an individual wavelength of light. Therefore it is dependent on wavelength.
Color
A nanometre (nm). Human eyes are sensitive to light in the ranges from 390 nm to 700 nm.
The wavelength is too long to be seen by our eyes.
Answer is simply yes , human eyes is only sensitive to the visible light at the electromagnetic spectrum , however there is a different in wavelength and the frequency depending on the color of the visible light
Because the average human being has no receptors on the retinas of his eyes that respond to electromagnetic waves that are shorter than that.
Visible 'light' ranges from roughly 380 to 750 nanometers (billionths of a meter). It can vary somewhat for different individuals' eyes. If electromagnetic radiation has a wavelength longer than about 750nm or shorter than about 380nm, you may still call it 'light' if you want, but the human eye doesn't respond to it.
The blue light has longer wavelength, lower frequency, andless energy per photon than the ultraviolet light has.The blue light is also visible to the human eyes, whereas theultraviolet light is not.
If you can see the light reflected, then it has hit your eyes, and your brain is processing it as the sense of sight, if you cannot see it, then it has reflected somewhere other than your eyes-IE; back into space, or it is a wavelength of light that the human eye cannot detect.
no a human is not a source of light
That depends on whether it's still in the visible light range that human eyes can detect. If it's beyond red it will be infrared, a light wave with wavelength/frequency that we cannot detect. The frequency range of red light is between 484 THz to 384 THz. The wavelength of visible red light is between 620 nm to 750 nm.
Light rays are visible and have higher frequency compared to that of heat radiation Heat radiation is nothing but infra red which is not visible to human eyes. They have longer wavelength compared to that of visible light
The wavelength of visible light corresponds to roughly 380 to 750 millionths of a millimeter.Any longer or shorter than that, and your eyes don't respond to the radiation.