Why do we use electromagnetic spectrum?

Since we are not able to travel to a star or take samples from a faraway galaxy, we must depend on electromagnetic radiation — light — to carry information to us from distant objects in space. The Hubble Space Telescope can view objects in more than just visible light, including ultraviolet, visible and infrared light.

Why is the electromagnetic spectrum useful?

It is important because it furnishes information about the composition, the temperature and maybe the mass or relative velocity of the body that emits or absorbs it.

How do we use the electromagnetic spectrum in everyday life?

How do we use the electromagnetic spectrum in everyday life?

  1. Radio waves are transmitted through air easily. …
  2. Microwaves are widely used in applications that involve cooking food. …
  3. The infrared radiations are used in cookers, electric heaters and infrared cameras.
  4. Visible light is used in fibre optic communication.

What do we use electromagnetic energy for?

Up to the end of the microwave spectrum, most all modern conveniences that use electromagnetic energy in one way or another are in the lower frequency region, including millimeter waves, cell phones, WiFi, microwave ovens, space and terrestrial communications, radar for airports and military uses, AM and FM radio, …

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What is the most useful part of 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.

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.

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.

What is electromagnetic spectrum explain?

electromagnetic spectrum, the entire distribution of electromagnetic radiation according to frequency or wavelength. … The electromagnetic spectrum comprises the span of all electromagnetic radiation and consists of many subranges, commonly referred to as portions, such as visible light or ultraviolet radiation.

Can humans see visible light?

The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light. Typically, the human eye can detect wavelengths from 380 to 700 nanometers.

How do electromagnetic waves work?

Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component. An electromagnetic wave transports its energy through a vacuum at a speed of 3.00 x 108 m/s (a speed value commonly represented by the symbol c).

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