What is electromagnetic spectrum and its uses?
NASA’s scientific instruments use the full range of the electromagnetic spectrum to study the Earth, the solar system, and the universe beyond. When you tune your radio, watch TV, send a text message, or pop popcorn in a microwave oven, you are using electromagnetic energy.
What type of EM waves is used in tanning beds and sterilizing equipment?
Note that tanning beds use predominantly long-wave UV A (400 ~ 315 nm) radiation, which is less mutagenic than short-wave UV B (315 ~ 280 nm) radiation further to the right.
What is electromagnetic spectrum Slideshare?
The electromagnetic waves are grouped into types that have similar wavelengths and so have similar properties. Electromagnetic waves form a continuous series in order of changing wavelength, frequency and energy. This series is called the electromagnetic spectrum.
What is meant by electromagnetic spectrum give its four uses?
The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to Waves and Frequency. EM spectrum uses are: Communication, treat cancer, sterilize medical equipment, killing living organisms.
How is the electromagnetic spectrum used in everyday life?
Everyday life is pervaded by artificially made electromagnetic radiation: food is heated in microwave ovens, airplanes are guided by radar waves, television sets receive electromagnetic waves transmitted by broadcasting stations, and infrared waves from heaters provide warmth.
What are the types of electromagnetic spectrum?
The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
What are the properties of electromagnetic spectrum?
Electromagnetic waves are typically described by any of the following three physical properties: frequency (f), wavelength (λ), or intensity (I). Light quanta are typically described by frequency (f), wavelength (λ), or photon energy (E). The spectrum can be ordered according to frequency or wavelength.
What is the most important electromagnetic spectrum?
The most important of these is visible light, which enables us to see. Radio waves have the longest wavelengths of all the electromagnetic waves. They range from around a foot long to several miles long.
What are the characteristics of the electromagnetic spectrum?
What is an example of an electromagnetic spectrum?
The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
