Infrared Waves Flashcards
These are waves that are part of the electromagnetic spectrum. Its wavelengths are longer than visible light but shorter than microwaves.
Infrared Lights
He discovered infrared lights by placing thermometers within each color of the visible spectrum in the 1800s.
Frederick William Herschel (1738-1822)
Some examples of infrared waves are…
- infrared cameras
- night vision goggles
- sunlight
- fire
- a warm sidewalk
What is the use of infrared rays in massage therapy?
It is used for warming the skin and relaxing the muscles.
Infrared rays are widely used for cosmetic applications such as…
- treating skin injuries
- smoothing wrinkles
- reducing the occurrence of dandruff, blackheads, etc.
- improving blood circulation
- continuous supply of oxygen
- This wavelength ranges from 3-8 micrometers.
- Used in the chemical industry and astronomy.
Medium infrared
- This wavelength ranges from 1.4-3 micrometers.
- Used for telecommunications and military purposes.
Short wavelength infrared
How is infrared radiation measured?
It is measured using an instrument called an infrared thermometer.
Almost __________ arriving to the Earth from the Sun comes as infrared light.
half of the energy
TRUE OR FALSE?
- Infrared light cannot travel through thick smoke, dust, fog, skin and even some materials.
FALSE
- it CAN
TRUE OR FALSE?
- Infrared waves are longer than visible light waves but shorter than radio waves.
TRUE
The shortest wavelength of an infrared wave is about ___ microns. The longest wavelength of an infrared wave is ____ microns.
- 0.7 microns
- 350 microns
TRUE OR FALSE?
- Infrared light diminishes cell regeneration.
FALSE
- ENHANCES
This wavelength ranges from 8-15 micrometers.
long-wavelength infrared
