Blacklights use UV (Ultra Violet) rays, and there are 2 different UV rays.
Short waves can be dangerous when in contact with the skin and are primarily used for germicidal operations.
Long waves are used for many things and are, most of the time, used at Bowling alleys.
sound waves
REMOTES used to control Televisions & Night Vision Camerasmake use of INFRARED light waves.
They use electromagnetic waves. cellphones use radio waves while electric and microwave ovens use infrared and/or microwaves
the light you use to heat food is an examle of a infrared wave.
refraction
electromagnetic waves
It doesn't 'USE' any; that is, you don't have to provide any electromagnetic waves in order for a light bulb to do its job.In the course of doing its job, the light bulb PRODUCES light and heat waves.A fluorescent light also produces radio waves.
sound waves
They most use infa red but they use wireless for the more recent technology.
They use their eyes
Most of these networks use radio waves for their transmission medium, but some use infrared light waves
Radio waves, sounds waves arn't electromagnetic waves.
To see things.
They dont need it, but they can use it
One uses infrared light and the other uses radio waves. Hope this helps!
REMOTES used to control Televisions & Night Vision Camerasmake use of INFRARED light waves.
Most of these networks use radio waves for their transmission medium, but some use infrared light waves