Electromagnetic radiation

Spectrophotometry is a method in which organic and inorganic substances are identified or characterized by the use of electromagnetic radiation. Electromagnetic radiation not only includes light (or photons), but thermal energy as well. While the electromagnetic spectrum consists of wavelengths between gamma radiation and the Far IR, most spectrophotometric methods rely on the UV and visible region. In order to use spectrophotometric methods, the sample being analyzed must be able to absorb the…

so they are the farthest apart). After extensive research, a man named James Clerk Maxwell found that one specific group of electromagnetic waves was the cause of visible light, or the cause of color. Maxwell also identified…

be detected using electronic devices. Important terms that will be discussed in this paper are ultraviolet light, photochromism, chemical reactions, and absolute zero. Relating to electromagnetic radiation having wavelengths shorter than those of visible light but longer than those of x-rays. Ultraviolet radiation is emitted by the sun and some of its absorbed by the sun and some of it is absorbed by the o-zone in the atmosphere. Too much exposure to ultraviolet light can be can lead to sun…

In experiment 1 there were five cuvettes of decreasing concentrations from the initial 0.01 mg/ml concentration of Fast Green solution (cuvette 1). The diluted concentration of cuvettes #2 through #5 were calculated using the dilution formula, C1V1 = C2V2 ; the calculations for the dilute concentrations are in Results section. The concentration for each tube were as follows: 0.015 mg/ml for tube 1, 0.0075 mg/ml for tube 2, 0.00375 mg/ml for tube 3, 0.001875 mg/ml for tube 4, and 0.000935 mg/ml…

summer days. The advanced fabric would aloe IR radiation to escape through the fabric easily, and prevent the body from overheating. Furthermore, researchers have produced a nanoporous fabric that can release body heat, instead of…

The radiation pattern is wonderfully described in the form of a three dimensional graph of power versus elevation and azimuth angles but more generally defined by E-plane or H-plane where one angle is held fixed while the other is varied as shown in Figure 1.4.1. Figure 1.4.1: A radiation pattern for a microstrip antenna. The radiation pattern can be determined easily which a microstrip patch antenna has. The source of the radiation of the electric field at the gap…

antennas for the propagation and reception of the signals. As we know that antenna emits electromagnetic waves in the space for the communication purposes. These two types of waves as depicted by the name Electro-Magnetic is a combination of electrical and magnetics fields. These two waves are mutually orthogonal i.e. oriented at an angle of 90o with each other. The general wave form is given as Fig: Electromagnetic Waves At the receiving side there is a problem that if we receive the…

LED, has many benefits such as low power consumption, small size, long life, low cost, low heat radiation. So they are used in numerous applications, like traffic lights, advertisement displays, and indoor lighting equipment and so on. LED based Li-Fi can provide internet connectivity to users instead of using existing wireless technologies as it has many advantages such as no electromagnetic interference, easy installation, high data rate, secure data communication and low cost [3].…

Most individuals with even the most rudimentary knowledge of science have probably heard of x-rays and gamma radiation. Very few however, will be able to tell you where these forms of radiation come from. The answer: Pulsars. Pulsars, or neutron stars, are physics sandboxes that provide extreme conditions for humans to experiment with which are not readily available on Earth. Due to this usefulness, the discovery and research of these phenomena should be of the utmost importance. These neutron…

X-radiations (X-rays) are electromagnetic radiation that is utilised in performing radiographs; radiography is an imaging technique that utilises X-rays to generate a view of the internal anatomy of an individual (National Institute of Biomedical Imaging and Bioengineering 2017). The use of dental X-rays play a fundamental part in every dental clinic in terms of assisting dental professionals in diagnosing a condition, aiding in highlighting and providing early intervention for various dental…