What are the characteristics of electromagnetic waves?

These electric and magnetic waves travel perpendicular to each other and have certain characteristics, including amplitude, wavelength, and frequency. General Properties of all electromagnetic radiation: Electromagnetic radiation can travel through empty space.

Furthermore, what are the characteristics of a mechanical wave?

A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.

What are mechanical and electromagnetic waves?

Categorizing waves on this basis leads to two notable categories: electromagnetic waves and mechanical waves. An electromagnetic wave is a wave that is capable of transmitting its energy through a vacuum (i.e., empty space). Electromagnetic waves are produced by the vibration of charged particles.

What are the properties of electromagnetic wave?

There are some general properties shared by all forms of electromagnetic radiation:

• It can travel through empty space.
• The speed of light is constant in space.
• A wavelength of light is defined similarly to that of water waves—distance between crests or between troughs.
• What are the main features of the electromagnetic spectrum?

All electromagnetic waves are transverse waves that can travel through a vacuum. They all travel through empty space at a speed of 300 000 000 m/s. Radio waves have the longest wavelength, lowest frequency and lowest energy. Gamma rays have the shortest wavelength, highest frequency and highest energy.

What do all the electromagnetic waves have in common?

The electromagnetic spectrum. Electromagnetic waves carry transverse vibrations in electrical and magnetic fields, not vibrating particles. Electromagnetic waves do not need matter to travel through – they can travel through empty space (a vacuum).

What are the characteristics of radio waves?

Radio Waves. Radio waves are a type of electromagnetic (EM) radiation with wavelengths in the electromagnetic spectrum longer than infrared light. They have have frequencies from 300 GHz to as low as 3 kHz, and corresponding wavelengths from 1 millimeter to 100 kilometers.

What is different about the different parts of the electromagnetic spectrum?

Generally, electromagnetic radiation is classified by wavelength into radio wave, microwave, terahertz (or sub-millimeter) radiation, infrared, the visible region that is perceived as light, ultraviolet, X-rays and gamma rays. The behavior of EM radiation depends on its wavelength.

What are some examples of electromagnetic spectrum?

The electromagnetic spectrum, starting from the waves with the longest wavelengths (and least energy), consists of radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma radiation. Members of the family differ from one another only in their wavelength, or frequency.

What are the characteristics of mechanical waves?

A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.

What are the uses of the electromagnetic spectrum?

Some uses of electromagnetic radiationElectromagnetic radiationUsesmicrowavescooking communications satellite transmissionsinfraredcooking thermal imaging short range communications optical fibres television remote controls security systemsvisible lightvision photography illumination

How electromagnetic waves are formed?

Electromagnetic waves consist of both electric and magnetic field waves. These waves oscillate in perpendicular planes with respect to each other, and are in phase. The creation of all electromagnetic waves begins with an oscillating charged particle, which creates oscillating electric and magnetic fields.

How carrier waves are modulated to transmit information?

The purpose of the carrier is usually either to transmit the information through space as an electromagnetic wave (as in radio communication), or to allow several carriers at different frequencies to share a common physical transmission medium by frequency division multiplexing (as, for example, a cable television

What are the characteristics of a mechanical wave?

A mechanical wave is a wave that is not capable of transmitting its energy through a vacuum. Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.

Can an electromagnetic wave be reflected?

Visible light – Being an Electromagnetic wave is reflected by glass (take mirror). Would all other waves in the electromagnetic spectrum be reflected in the same way by our simple mirror For highly intense X-Rays & gamma rays, take that the mirror is more stronger such that it could resist for at least 30 seconds.

What is the type of electromagnetic radiation that reaches the earth’s surface?

Some wavelengths of electromagnetic waves arriving from space are absorbed by the atmosphere and never reach the surface of our planet. Take a look at the following diagram. The earth’s atmosphere absorbs the majority of ultraviolet, X-, and gamma rays, which are all shorter wavelengths than visible light.

How do you determine the speed of a wave?

So in a time of one period, the wave has moved a distance of one wavelength. Combining this information with the equation for speed (speed = distance/time), it can be said that the speed of a wave is also the wavelength/period. Multiply the frequency by the wavelength to determine the speed.

What is an electric or magnetic field?

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.

the wavelengths of radiation an object emits depends on the object’s temperature; a hotter object will radiate more energy at shorter wavelengths, a cooler object radiates most of its energy at longer wavelengths. Objects with a higher temperature will of course emit more energy than cooler objects.

How do we use infrared waves?

All objects on Earth emit IR radiation, or heat, which can be detected by electronic sensors, such as those used in night-vision goggles and infrared cameras. A simple example of such a sensor is the bolometer, which consists of a telescope with a temperature-sensitive resistor, or thermistor, at its focal point.

Can electromagnetic waves travel through a vacuum?

Electromagnetic waves are waves which can travel through the vacuum of outer space. Mechanical waves, unlike electromagnetic waves, require the presence of a material medium in order to transport their energy from one location to another.

What is an example of an electromagnetic?

Examples of Electromagnetic Waves. Radio waves, Light waves, thermal radiation, X ray, visible light, microwave, infrared, gamma rays etc. are the example of electromagnetic waves. These waves together form the electromagnetic spectrum.

How do you produce visible light?

An atom’s electron absorbs energy and becomes energized, or excited. When this happens, the excited electron moves from its ground state (normal position around the nucleus) to an excited state (position farther from the nucleus. 2. The excited electron emits the energizing energy as photons of visible light.