Question

Match the EM waves from list I with corresponding Inventors in list II:

Answer 1

1. Microwaves - Microwaves were first predicted by James Clerk Maxwell in 1864 by the use of his equations
2. Infrared radiation - Infrared was discovered in 1800 by astronomer Sir William Herschel, who discovered a type of invisible radiation in the spectrum lower in energy than red light, by means of its effect on a thermometer.
3. X - rays - X-rays were discovered in 1895 by Wilhelm Conrad Roentgen (1845-1923).
4. Gamma rays - Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium.
5. Ultraviolet radiation - Johann Wilhelm Ritter is best known for his discovery of ultraviolet light in 1801.