How do you know that infared is there if you can not see it?

Answer 1

-well actually you can never see infrared light.

It is light that is "too red" to be seen with our eyes.

Other devices that "see" infrared light see how much it emits, but provides false colored images of the infrared light.

For example, those pictures of galaxies taken from infrared detection equipment appear bright at some regions because those regions emit a lot of infrared light but that is not how infrared light actually looks like.

The same goes for ultraviolet photos. Like the ultraviolet photos of our sun provide false colors and the brightest areas represent the area with the greatest ultraviolet light emission. and the same goes for x ray, microwave and radio.

Our visible light that we can see is a tiny chunk of all the light that is actually out there.

It is extremely hard to visualize light we have never seen in our life with our eyes.. These other colors just cannot be seen with human eyes.

Answer 2

There are a number of ways to detect infrared radiation. Although it cannot be seen by the unaided human eye, you can get goggles which make infrared radiation visible (known as night vision goggles, because they make it easier to see things in the dark). In addition, infrared rays make things warmer; you can feel the warmth if infrared rays shine on your skin. There are lots of scientific instruments which are capable of detecting them. They can generate electricity in a photoelectric cell.

Answer 3

IR spectroscopy - and other tools using IR radiation - can be used to detect characteristics of molecules, but you don't see them directly. For example you can measure things like the absorption of IR radiation by bonds in molecules at wavelengths that characterize the types of bonds, which then tells you things about the structure of the molecule. IR wavelengths are VERY long compared to the size of molecules so you won't see the molecules directly.

Answer 4

infrared rays have less frequency and large wavelength than visible rays so if decrease the wavelength of i.r rays by using certain lenses we can acheive it

Answer 5

you dont, they are two separate things and cannot be transformed or transmuted with any technology known to man.

Answer 6

There are thermal imagers - cameras that are sensitive to infra red radiation-

Answer 7

Yes, with detectors sensible to infrared light.

Answer 8

Some animals can see it.

You cannot see infra-red light as such but you can convert it into light at visible wavelengths and see those images.

Answer 9

No.

Answer 10

No.