Radio waves are usually used for communication.
Microwave is used in communication, radar, positioning and exploration. Remote sensing heating (microwave oven)
Infrared ray is generally used as night vision equipment for remote heating detection.
Visible light is generally used to see haha.
Ultraviolet rays are generally used for sterilization. Developer [fluorescent substance]
X-rays are used for medical treatment. Perspective border inspection
Gamma rays are generally used as physical radiation detection rays in medical radiology department, which have strong penetrating power and can be used for industrial flaw detection or automatic control of assembly line. Gamma rays are lethal to cells and are used to treat tumors in medicine.
And strategic nuclear weapons.