GEOLOGY

Detailed explanation-1: -Answer. Answer: metal detectors, high-speed trains, electric generators.

Detailed explanation-2: -Electromagnetic energy is used to power the modern world. Without advanced electromagnetic technology, cell phones and computers, Bluetooth, GPS systems, satellite imagery, and scientific understanding of our planet and space as we know it would not be viable.

Detailed explanation-3: -Many technologies already make good use of some part of the electromagnetic spectrum: telecommunications networks carry signals as light waves down optical fibres; mobile phones send microwave signals through the atmosphere; and x-rays have been used for more than a century in medical imaging.

Detailed explanation-4: -Electromagnetic waves have a vast range of practical everyday applications that includes such diverse uses as communication by cell phone and radio broadcasting, WiFi, cooking, vision, medical imaging, and treating cancer.

Detailed explanation-5: -Radio waves-radio and television. Microwaves-satellite communications and cooking food. Infrared-Electrical heaters, cooking food and infrared cameras. Visible light-Fibre optic communications. Ultraviolet-Energy efficient lamps, sun tanning. X-rays-Medical imaging and treatments. More items