What is the purpose of the electromagnetic spectrum?

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.

Why is the electromagnetic spectrum important?

Discovered more than a century ago, the electromagnetic spectrum is the basis on which our universe operates. Without it we wouldn’t be able to see, stars wouldn’t shine, and life would not exist. It is one of the most important principles that governs everything around us.

What is the main idea of electromagnetic spectrum?

The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The electromagnetic spectrum of an object has a different meaning: it is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.

What are 3 uses for the electromagnetic spectrum?

Uses of Electromagnetic Waves

  • Radio waves – radio and television.
  • Microwaves – satellite communications and cooking food.
  • Infrared – Electrical heaters, cooking food and infrared cameras.
  • Visible light – Fibre optic communications.
  • Ultraviolet – Energy efficient lamps, sun tanning.
  • X-rays – Medical imaging and treatments.
THIS IS INTERESTING:  You asked: What is K in electromagnetic force?

What are the benefits of electromagnetic waves?

The killing and destructive power of electromagnetic radiation can be used constructively for curing the incurable diseases by eradicating the disease producing pathogens and micro organisms like bacteria, virus & fungi.

What is the most important part of the electromagnetic spectrum?

Infrared (IR) radiation – also referred to as thermal radiation – is the portion of the electromagnetic spectrum lying between visible light and microwaves. The most important natural source of infrared radiation is the sun.

How electromagnetic spectrum is created?

EM radiation is created when an atomic particle, such as an electron, is accelerated by an electric field, causing it to move. The movement produces oscillating electric and magnetic fields, which travel at right angles to each other in a bundle of light energy called a photon.

How do we use 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 the 4 main properties of electromagnetic waves?

Every form of electromagnetic radiation, including visible light, oscillates in a periodic fashion with peaks and valleys, and displaying a characteristic amplitude, wavelength, and frequency that defines the direction, energy, and intensity of the radiation.

What would happen if there was no electromagnetic spectrum?

Radio, Microwave, Infrared, Visible light, Ultraviolet, X-rays, Gamma rays. No EM wave means no sight. No transfer of energy from the sun to the Earth, so no life. If there are no EM waves in the world, then, there would be nothing.

THIS IS INTERESTING:  You asked: How does the number of coils affect an electromagnet?