The Infra Red light is used for reducing Muscular Pain and the Red beam Light is used for Educational Purposes to point out at Maps etc. What is the difference between these to lights. These are both Infra Red Lights or differ in there composition and use.
2007-07-31 01:39:06 · 4 answers · asked by zurefa45 1 in Science & Mathematics ➔ Physics
Both are electromagnetic radiation. The laser pointer produces light within the human visible spectrum (or you wouldn't see it). Infrared light has a longer wavelength.
2007-07-31 15:52:38 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
Infra red is the same as normal visible light except that it has lower frequencies that can not be seen by the human eye. It is made in the same way, by lamps, LEDs and fires. If you want to see infra-red, just look through a camcorder at a remote control. You will see the flashes.
2016-05-18 22:18:33 · answer #2 · answered by ? 3 · 0⤊ 0⤋
The infra-red for heating is invisible and different from the red laser which is not infra-red.
Infra-red lasers are very destructive and can burn through concrete and steel.
The pointer is simply a single frequency of red light.
2007-07-31 02:39:09 · answer #3 · answered by Billy Butthead 7 · 0⤊ 0⤋
Ifrared light is not visible to the human eye without assistance. The red light used as a pointer is a laser light which is actually a concentrated, high energy beam of light.
2007-07-31 01:49:55 · answer #4 · answered by fangtaiyang 7 · 0⤊ 0⤋