Electromagnetic radiation Essays

  • Electromagnetic Radiation Lab Report

    725 Words  | 3 Pages

    by the human eye. Therefore, these dominant colors of red, orange, yellow, green, blue, and violet, are known as visible light. Light, which governs the visual perception of the world, is a part of the energy group known as electromagnetic radiation. Electromagnetic radiation (EMR) describes the type of waves that interact within electrical and magnetic fields. These waves vary in frequency and wavelength within the visible light spectrum, producing these distinct colors. In the interaction of these

  • Disadvantages Of Using Electromagnetic Radiation

    2206 Words  | 9 Pages

    Electromagnetic radiation can be an alternative medicine, especially since procedures involving these radiation are non-invasive. This essay explains how electromagnetic radiation is used in biomedical engineering, and describes how the procedures are performed. It also outlines the disadvantages of using electromagnetic radiation. Electromagnetic radiation was first discovered in the early 19th century. William Herschel discovered infrared radiation, and Johann Wilhelm Ritter discovered ultraviolet

  • Electromagetic Wave Theory

    1540 Words  | 7 Pages

    we are talking about electromagnetic radiation. In classical physics, the flow of energy at the universal speed of light through free space or through a material medium in the form of the electricand magnetic fields that make up electromagnetic waves such as radio waves, visible light, and gamma rays. In such a wave, time-varying electric and magnetic fields are mutually linked with each other at right angles and perpendicular to the direction of motion. An electromagnetic wave is characterized

  • Essay On Barcode Scanners

    784 Words  | 4 Pages

    scanners was to label railroad cars and also labeling Wrigley's Gum. The use of lasers and radiation allow barcode scanners to be able to work. This means waves are making this work because lasers are light waves and electromagnetic radiation waves are radio waves with wavelengths in the electromagnetic spectrum longer than infrared light. Both light and radiation waves of energy are called electromagnetic waves because they have oscillating electric and magnetic fields. People are trying to make

  • Short Essay On Radio Waves

    874 Words  | 4 Pages

    area to another. Some types of waves need a medium in which to travel through; these waves are called mechanical waves. Other types of waves do not need a medium in which to travel through, they can travel in empty space; these waves are called electromagnetic waves. Mainly, there are two types of how the particles in the waves vibrate, they are called transverse waves and longitudinal waves. The particles in transverse waves vibrate in an up and down pattern. However, particles in longitudinal waves

  • Characteristics Of An Antenna

    824 Words  | 4 Pages

    will send an alternating current that is in radio frequency to radiate the electromagnetic energy to electromagnetic waves. Antenna receiver will receive the power of an electromagnetic wave to produce a tiny voltage at the terminal to be amplified. The shape and size of the antenna’s structure will decide how much the antenna transmitter can radiate, how well the antenna receiver can receive and the direction of radiation that being radiate or receive. Antenna is the main segment of the equipment

  • The Pros And Cons Of Radiation

    981 Words  | 4 Pages

    Radiation can be defined as the energy travelling through space which comes from a source and may be able to penetrate various materials. There are two types of radiation and they are the non-ionizing and ionizing radiation. Non-ionizing radiation consists of light, radio and microwaves. Whereby ionizing radiation can produce charged particles in matter, and ionizing radiation is produced by unstable atoms. The difference between unstable atoms and stable atoms is that unstable atoms have an excess

  • Advantages Of Spectroscopy

    1076 Words  | 5 Pages

    with the production, measurement and interpretation of spectra due to interaction of electromagnetic radiation with matter which is absorbed or emitted by atoms of a sample. This absorption or emission occurs when the atoms of the sample move from one energy level to another in presence of light. In other words, it is a science which deals how light interacts with matter. When atoms or molecules absorb electromagnetic energy, the incoming energy promotes the molecular system to a higher energy level

  • Elecctics: Maxwell's Equations

    1728 Words  | 7 Pages

    The set of four complicated equation that describe the word of electromagnetics are known as Maxwell's Equations. These equations describe how electric and magnetic fields propagate, interact, and how they are influenced by objects. The energy that travels and spreads out as it goes is defined as a Radiation. (ALAN Isaacs ) In general, wave are means of transporting energy or information, wave represents as a function of both space and time.( Matthew.N.O .Sadiku) The light energy is an only

  • Advantages Of Remote Sensing

    1610 Words  | 7 Pages

    gathering its inputs using electromagnetic radiation or acoustical waves that emanate from the targets of interest. An Ariel photograph is a common example of a remotely sensed (by camera and film or now digital) product. It has evolved into an important tool for monitoring the atmosphere and surfaces of planetary objects. It has diverse applications and is very efficient technique to help the growth of economy and solve some of its problems. The sun is a source of energy or radiation, which provides a very

  • The Importance Of Spectroscopy

    846 Words  | 4 Pages

    Introduction Spectroscopy is a term which refers to the interactions of various types of electromagnetic radiation with matter. It is also a study of the absorption and emission of light and other radiation by matter. Dependence of this process related to the wavelength of the radiation. Spectrometers are used to measure the properties of light over a specific portion of the electromagnetic spectrum. Fig 1: Dispertion of the visiable light 2. Theory

  • Essay On Waves

    2270 Words  | 10 Pages

    when the particles move up and down perpendicularly to the wave particles. Examples of transvers waves are: all electromagnetic radiation like light, waves on a string and ripples on water. Longitudinal waves

  • Transmission Electron Microscope Lab Report

    916 Words  | 4 Pages

    In Transmission Electron Microscope, the electron beam is confined by the two condenser lenses which also control the brightness of the beam, passes the condenser aperture and “hits” the sample surface as shown in the Fig 3.5. The electrons that are elastically scattered consisted of the transmitted beams, which pass through the objective lens. The objective lens forms the image display. The apertures, the objective and selected area aperture are used to choose of the elastically scattered electrons

  • Surface Plasmon Polariton Research Paper

    1251 Words  | 6 Pages

    Surface Plasmon Polariton is the electromagnetic wave that passes to the surface of metal and air. The Plasmon indicates the wave’s passes to the metal and the Polariton indicate the wave passes in the air. The development of surface Plasmon Polariton is achieved by the excitation of photon and electron. When the electron passes on the metal surface then strike on it and disperses into air as a Polariton. The scattered waves are parallel to the surface of metal. Other method of surface Plasmon Polariton

  • Chemical Reflection

    1784 Words  | 8 Pages

    PHOTOPHYSICAL REACTIONS: Definition: “The phenomenon that elaborates the not reactive reactions which include both the reactions which emit radiations of light and also those reactions which do not emit radiations” The energy of these reactions can be obtained from the longest ban of the wavelength of these reactions. Energy transfer: The energy that is transferred due to which a molecule which is in its excited state M* transfers some part of its excitation energy to its partner, Q, is called energy

  • Essay On Transmission Electron Microscope

    1132 Words  | 5 Pages

    same basic principles as that of a light microscope, but uses electrons instead of light. The lower wavelength of electrons compared to that of light, results in better resolution of the TEM image compared to a light microscope image. TEM uses electromagnetic lenses rather than glass lenses to focus the electrons into a very thin beam. The electron beam pases through the specimen, depending on the density of the material, out of which some are scattered and disappears from the beam. At the bottom of

  • Powder X-Ray Diffraction Lab Report

    927 Words  | 4 Pages

    Powder X-Ray Diffraction (XRD) is a rapid analytical technique primarily used for a crystalline material of phase purity and can provide information on unit cell dimensions. The analyzed is bulk composite material is, homogenized, and these particles used to be x-ray diffraction. Max von Laue, in 1912, discovered that crystalline material formation three-dimensional diffraction gratings for X-ray exposed similar to the spacing of planes in a crystal lattice. X-ray diffraction is now a common technique

  • Antenna Basics: A Literature Review

    788 Words  | 4 Pages

    terms and relevant topics related to the project, a literature review was done. In this section, a brief summary of it is presented. Antenna Basics Polarization The polarization of an antenna is described by the time-varying direction of an electromagnetic wave and the relative magnitude of the vector of the electric field. There are three kinds of polarization: linear polarization, circular polarization and elliptical polarization. Linear polarized electric field can possess both horizontal and

  • Essay On Spectrophotometry

    1238 Words  | 5 Pages

    molecules and atoms and radiation such as infrared radiation5. MRI scans to acquire a through image of the human body for disease diagnostics is an example of spectroscopy. Which is the interaction of hydrogen atoms with radiowaves5. As for food dyes, which is typically used in commonly consumed products such as Gatorade and many commercial drinks. The appearance in color is the result of interactions between the substance and the specific section in the electromagnetic field that is “visible”5

  • Colorimeter Lab Report

    1015 Words  | 5 Pages

    natural or artificial source falls on a colored homogenous medium contained in a glass container, the color of the medium is the complementary color of the light that has been absorbed by the medium. During this interaction between the medium and the radiation, a portion of light is absorbed by the medium, a portion is reflected and the rest is transmitted. The intensity of the incident light I0 is the sum