Which of the following can create electromagnetic waves?

Accelerating charge produces variable magnetic field and which in turn produces variable electric field and thus produce electromagnetic wave.

Which of the following are electromagnetic waves?

The correct answer is option 1 i.e Infrared rays. Waves that consist of vibrating electric and magnetic fields are called electromagnetic waves.

The examples of electromagnetic waves are:

  • Radio waves.
  • Microwaves.
  • Infrared waves.
  • Visible light.
  • Ultraviolet.
  • X-rays.
  • Gamma rays.

What electromagnetic waves are made of?

Definition of ‘Electromagnetic Waves’ Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.

How are electromagnetic waves produced?

Electromagnetic waves are produced whenever electric charges are accelerated. This makes it possible to produce electromagnetic waves by letting an alternating current flow through a wire, an antenna. The frequency of the waves created in this way equals the frequency of the alternating current.

What are the 7 electromagnetic waves and their uses?

The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.

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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 are the 7 types of electromagnetic waves?

The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays. To tour the electromagnetic spectrum, follow the links below!

Which produces the electric field in an electromagnetic wave?

The electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field. The way in which charges and currents interact with the electromagnetic field is described by Maxwell’s equations and the Lorentz force law.

What are three sources of electromagnetic waves on earth?

As shown in the illustration below, there are three main sources of electromagnetic radiation that are used in remote sensing: solar radiation, in other words natural radiation that originates from the sun. terrestrial radiation, in other words natural radiation emitted by the Earth’s surface.

How do you create radio waves?

Radio waves are radiated by charged particles when they are accelerated. They are produced artificially by time-varying electric currents, consisting of electrons flowing back and forth in a specially-shaped metal conductor called an antenna.

What are the 4 types of waves?

Types of Waves – Mechanical, Electromagnetic, Matter Waves & Their Types.

What are the uses of electromagnetic waves?

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.
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What are 5 examples of EM waves we encounter in everyday life?

Behaviour and uses of electromagnetic waves

  • Radio waves. Radio waves are used for communication such as television and radio. …
  • Microwaves. Microwaves are used for cooking food and for satellite communications. …
  • Infrared. …
  • Visible light. …
  • Ultraviolet radiation.