Question

what is infrared waves

Answer 1

Infrared waves are electromagnetic radiation of a particular wavelength or color that we have named 'infrared.'

They are between 700 nm (nanometers) and 1 mm. Note that 1 mm is equal to 1,000,000 nanometers. They are just beyond what our eyes can detect on the red side of the rainbow. William Herschel first discovered them around 1800.

Answer 2

Infrared waves are electromagnetic radiation of a particular wavelength or color that we have named 'infrared.' They are between 700 nm (nanometers) and 1 mm. Note that 1 mm is equal to 1,000,000 nanometers. They are just beyond what our eyes can detect on the red side of the rainbow. William Herschel first discovered them around 1800