EM Waves

Question 1

Production of radiowaves

Answer 1

Rapid acceleration and deceleration of electrons in aerials

Question 2

Production of microwaves

Answer 2

Klystron valve or magnetron valve

Question 3

Production of infra-red waves

Answer 3

Vibration of atoms and molecules

Question 4

Production of light waves

Answer 4

Electrons in atoms emit light when they move from one energy level to lower energy level

Question 5

Production of ultraviolet radiation

Answer 5

Inner shell electrons in atoms moving from one energy to a lower level

Question 6

Production of x-rays

Answer 6

X-ray tubes or inner shell electrons

Question 7

Production of gamma rays

Answer 7

Radioactive decay of the nucleus

Question 8

Radiation which contributes to greenhouse effect

Answer 8

Infrared waves

Question 9

Radiation emitted by remote switches

Answer 9

Infrared radiation

Question 10

Electromagnetic wave used in LASIK eye surgery

Answer 10

Ultraviolet rays

Question 11

Radiation is used to kill germs in water

Answer 11

UV radiation

Question 12

Electromagnetic radiation used for diagnosis of cancer

Answer 12

X-rays

Question 13

Electromagnetic radiation produced by hot bodies and molecules

Answer 13

Infrared waves

Question 14

Electromagnetic wave used in communication

Answer 14

Radio waves