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Em radiation
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Introduction to light: Electromagnetic radiation is a form of light energy. Electromagnetic is made up of visible light, invisible light (ultraviolet, infrared, X-rays, radio waves and microwaves). In vacuum lights maximum velocity is 3.0x10^8 m/s.
Reflection: If an object does not radiate its own light, it must reflect light to be visible. Reflection includes two beams - an approaching or incident beam and an active or reflected beam. The imaginary line that is perpendicular to the principal axis is called the normal. A beam of light that hits this surface is known as the incident beam/ray. This beam/ray of light hits the surface and ricochets off (reflected beam). The point between the incident beam/ray and the normal will be indistinguishable in estimation as the edge between the reflected beam and the normal. All reflected light complies with this relationship, called Snell's Law, that the incident angle breaks even with the angle of reflection. This is the Law of Reflection.
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Light going through air and then through water is a case of a light beam changing medium. The speed of the light beam changes when it enters an alternate medium. As a rule, the heading of light likewise changes. We say the light twists. when light travels in a vacuum it is at its peak speed 3.0x10^8 m/s. Contingent upon the new medium the light will travel quicker or slower. It is the distinctive densities that make the decrease in velocity which at that point makes it twist. Light beams slow down around 25% when going through water and 35% when going through glass. On the off chance the light voyages slower then this medium is known as the denser medium. In the event that the light beam ventures faster then the medium is known as the rarer medium. At the point when light enters a more optically dense medium the beam twists towards the normal. c=3.0x10^8 m/s V = fλ λ = wavelength These diagrams use Snell's
...ossessed with three dimensional attributes. The optical effect may be explained by the fact that the human eyes see an object from two viewpoints separated laterally by about six centimeters. The two views show slightly different spatial relationships between near and near distant objects and the visual process fuses these stereoscopic views to a single three dimensional impression. The same parallax view of an object may be experienced upon reflection of an object seen from a concave mirror." (http://www.freepatentsonline.com/4229761.html).
Photons always travel at the speed of light, but they lose energy when traveling out of a gravitational field and appear to be redder to an external observer. The stronger the gravitational field, the more energy the photons lose because of this gravitational red shift. The extreme case is a black hole where photons from within a certain radius lose all their energy and become invisible.
This reflective essay will demonstrate the concept of reflection. The model of reflection by Driscoll, 2007 has been followed in this essay to reflect the clinical skills that I have studied and practiced in week 7to week 9 of this unit which assisted me to get prepared for the practical experience which I will commence at the end of this semester. I have practiced numerous skills during the practicals class, but this essay will be a focus on taking care of bedsore and wound management.
projected its rays through the tinted glass... But in the western or black chamber the effect of the
My sixteen week class in English 111. I was really nervous about this class. Because English has never been my strong point. This class has hard, but fun all at the same time. I learn a lot from this class. Meanwhile,the first day of class you handed a paper with a question on it. “The first thing I want to say to you who are students is that you must not think of being here to receive an education; instead, you will do much better to think of being here to claim one.” Even though putting my all in what I have learned, claiming my education with hard work because using the skills of the meal plan, as we write to different audiences and learning to be a Critically thinker as I start becoming a critically-Literate Citizenship.
striking the surface of the water or if it is just the reflection of the sun off of
X-rays and gamma ray photons are part of the electromagnetic spectrum. The twin nature of electromagnetic radiation is used to justify the wave and its behavior. A photon is a bundle of energy that can be identified by the equation E = hv. Where h is the planks constant and v is the frequency. The frequency is equal to the speed of light 3x10 8 divided by the wavelength. Therefore, high-energy radiations have a short wavelength and a high frequency.
Refraction occurs when light travels from one medium crosses a boundary and enters another medium of different properties. For example, light traveling from air to water. The amount of refraction (or bending) can be calculated using Snell's Law.
In 1801 Thomas Young provided some very strong evidence to support the wave nature of light, he placed a monochromatic light in front of a screen with two slits cut into it, and observed an interference pattern, only possible if light was a wave. In 1965 Richard Feynman came up with a thought-experiment that was similar to Young’s experiment. In Feynman’s double-slit experiment, a chosen material is fired at a wall which has two small slits that can be opened and closed at will – some of the material gets blocked and some passes through the slits, depending on which ones are open.
Refraction of Light Aim: To find a relationship between the angles of incidence and the angles of refraction by obtaining a set of readings for the angles of incidence and refraction as a light ray passes from air into perspex. Introduction: Refraction is the bending of a wave when it enters a medium where it's speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. The amount of bending depends on the indices of refraction of the two media and is described quantitatively by Snell's Law. (Refer to diagram below)
In the book, “The Element” by Ken Robinson he discusses how different education systems all over the world are but focuses on the education system in the United States. The reason being is that he believes that there are faults that need to be fixed because it doesn’t focus on the students individually and discovering their “element” but, on academics, business and state testing. Robinson claims that education itself is supposed to be a process in which it develops all resources.
Throughout different experiments, scientists have discovered that light behaves as both a wave and a particle in different circumstances. The only way that all of the properties of light can be explained is through the idea of a wave-particle duality.
Now in order to understand how lights is able to be refracted in different angles, it is important to understand the Snell’s Law which states that, the refractive angle always depend on the refractive index of both media. Now, the refractive index keeps on changing depending on the wavelength of the light passing through. Light, as we know, it is a wave that has different wavelength. Each wavelength represents a different color. Thus, different colors will have different refractive index when passed through the same media. It is important to note that light is normally refracted twice when it travels through a prism, first on its way in, and when it is going back.
The electromagnetic spectrum is a range of different types of radiations, this is energy that travels and spreads out as it goes. This range involves more than just visible light- small portion of the spectrum detected by the human eye- it goes beyond what the human eye cannot see. The two most important characteristics of the spectrum are wavelength and frequency. The electromagnetic spectrum can be divided into three different parts: the theory of visible light, the range of the electromagnetic spectrum, and how it benefits mankind.
Refraction is a process that occurs when light travels between media of different optical density. Light travels at a speed of roughly 3.0 × 108ms-1 in a vacuum. A vacuum has a refractive index n=1.00. The speed at which the light is travelling will decrease as it moves into differently optically