How do we use the electromagnetic spectrum in everyday life?
How do we use the electromagnetic spectrum 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 some devices that use electromagnetic waves?
Electromagnetic waves are ubiquitous in nature (i.e., light) and used in modern technology—AM and FM radio, cordless and cellular phones, garage door openers, wireless networks, radar, microwave ovens, etc. These and many more such devices use electromagnetic waves to transmit data and signals.
What are some real life examples of electromagnetic waves?
Examples of Electromagnetic Waves
- Radio and Television.
- Microwave Ovens.
- Medical Examination.
- Sterilization.
- Communication Devices.
- RADAR.
- Military Equipment.
- Cancer Therapy.
How are electromagnetic waves used in technology?
Radio waves are used for communications and radar. Microwaves are used to cook your food. Infrared waves are used in remote controls and are emitted from all warm objects, allowing them to be used to create heat-sensitive cameras.
What are 5 uses of radio waves?
Various frequencies of radio waves are used for television and FM and AM radio broadcasts, military communications, mobile phones, ham radio, wireless computer networks, and numerous other communications applications. Most radio waves pass freely through Earth’s atmosphere.
Where is radio used?
Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications.
What are 10 household items that use electromagnetic waves to function?
Many household appliances produce electromagnetic fields: low consumption light bulbs, television and computer screens, electric radiators and even electric blankets. All of these common objects emit electric or electromagnetic fields and / or function by using them.
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.
Which part of electromagnetic spectrum is used in telecommunication?
Microwaves
Microwaves are electromagnetic radiation that finds applications in communications, radar, and cooking. The frequencies of microwaves range from 1 GHz to 300 GHz. Thus in telecommunication, microwaves are used.
What are the functions of electromagnetic spectrum?
Electromagnetic Spectrum Uses / Applications Gamma rays are used for killing the bacteria in marshmallows &to sanitize medical equipment X-rays are used for scanning the structures of image bone Ultraviolet light can observe bees because flowers can stand-out visibly at this frequency Visible light is used to view the world by humans
What are the dangers of the electromagnetic spectrum?
Infrared waves are dangerous because they can cause burns, skin irritation, dehydration, low blood pressure and eye damage. A form of heat radiation, infrared waves are most dangerous at high levels. Infrared waves have a wavelength lower than the threshold of visibility on the electromagnetic spectrum, so we cannot see them.
How do astronomers use the electromagnetic spectrum?
Astronomers use the entire electromagnetic spectrum to observe a variety of things. Radio waves and microwaves – the longest wavelengths and lowest energies of light – are used to peer inside dense interstellar clouds and track the motion of cold, dark gas.
What are things use electromagnetic?
Uses of Electromagnetic Waves TV and FM radio (short wavelength) Direct line of sight with transmitter (do not diffract) Medium wavelength – travel further because they reflect from layers in the atmosphere
