4.3 Flashcards
what did James clerk Maxwell discover
waves travel though space
what are the 7 elements
radio waves, microwaves, infrared waves, visible light, ultraviolet rays, x rays, gamma rays
what are infrared
there referred to as thermal radiation or heat
what did Willam hershel do?
reflect light though prism and used thermometers to find temp of each colour
what is UVC
UVC has the shortest wavelength highest UV energy and 100% absorbed by the ozone and never hits us
what is UVB
UVB 2nd highest energy mostly absorbed by ozone its absorbed by the outer layer of the skin
what is UVA
UVA 3nd highest energy it goes though 2 layers of your skin
who is wilherm rontgen
created cathode ray tube / vacuum tube
what are x rays used for?
create a normal xray in a 2d picture when you need medical producers
