Nietkalieva Dinara IS113k Lab 1: Radio and Light Waves Virtual Lab 1) How is the radiating electric field (or electromagnetic signal) produced when radio stations broadcast? Include a description of what is producing the signal as well as the reasoning behind how this could produce a signal. We know that electromagnetic radiation is produced by accelerating charges. In the radio transmitter‚ electrons oscillate up and down and are thus accelerating. An electron will exert a force on another
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INTRODUCTION Radiation‚ flow of atomic and subatomic particles and of waves‚ such as those that characterize heat rays‚ light rays‚ and X rays. All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources. This article delineates the properties and behaviour of radiation and the matter with which it interacts and describes how energy is transferred from radiation to its surroundings. Considerable attention is devoted to the consequences of such an energy
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Light Absorption by Photosynthetic Pigments in Silver Beet Abstract The aim of the experiment was to determine the absorption of differing wavelengths of light by individual pigments in the vegetable silver beet. Pigments were extracted from silver beet leaves and separated into chlorophyll a‚ chlorophyll b‚ and carotene via chromatographs. Chlorophylls were then separated and an absorption spectra created using results obtained from a spectrophotometer. It was clear there were two distinct peaks
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visible spectrum has photons with the most energy? A) red B) orange C) green D) violet E) yellow 37) Which form of electromagnetic radiation has the longest wavelength? A) Radio Waves B) Microwaves C) X-rays D) Gamma Rays E) Infrared Radiation 41) Which form of electromagnetic radiation has photons with the lowest energy? A) Radio Waves B) Microwaves C) X-rays D) Gamma Rays E) Infrared Radiation 45) Which statement below does NOT follow the Bohr Model? A) When energy is absorbed by atoms‚ the electrons
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ultraviolet radiation is: A. 700-1500 mµ B. 1600-12‚000 mµ C. 0.1-3 mm D. 180-290 mµ 2. Wavelength of long ultraviolet radiation is: A. 700-1500 mµ B. 290-400 mµ C. 180-290 mµ D. 0.1-3 mm 3. What ultraviolet wavelength will produce reticuloendothelial stimulation? A. 2600-2700 Å B. 2700-3000 Å C. 2900-4000 Å D. 2400-2500 Å 4. The magnitude of radiation flux at any particular point of the skin depends upon the: A. Cross-sectional diameter of the radiation beam B. Distance
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Electromagnetic radiation Electromagnetic radiation (EM radiation or EMR) is one of the fundamental phenomena of electromagnetism‚ propagating and traveling through space via photon wave particles‚ carrying radiant energy. In a vacuum‚ it propagates at a characteristic speed‚ the speed of light‚ normally in straight lines. EMR is emitted and absorbed by charged particles. As an electromagnetic wave‚ it has both electric and magnetic field components‚ which oscillate in a fixed relationship to one
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TITLE: EFFECTS OF ELECTROMAGNETIC RADIATION ON HUMAN HEALTH. Table of Contents DECLARATION 2 APPROVAL 3 DEDICATION 4 ABSTRACT 7 LIST OF ABBREVIATIONS 7 CHAPTER 1: INTRODUCTION 9 1.1 Background information 9 1.2 STATEMENT OF THE PROBLEM 10 1.2.1 Current situation 10 1.2.2 Research to find out the effects of electromagnetic radiation on human health. 11 1.3 OBJECTIVE OF THE STUDY 13 1.3.1 General objective 13 1
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Bautista‚ Harris W. Guinomla‚ Jose Paulo Piloton and Khevin Anne A. Francisco‚ EECE‚ MSU-IIT Abstract –This project involves discovering how wireless connections occur in the atmosphere using a beam of laser. The project‚ laser communicator‚ uses electromagnetic waves to transfer information without direct connection between the input and output devices. This project will also investigate how the sound waves are transmitted as electrical and light signals through a transistor radio‚ a transformer‚ a laser
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Electromagnetic Waves Although you might not know it you’re constantly surrounded by thousands of electromagnetic waves every day. Sunlight and x-rays are only two types of electromagnetic waves‚ other types are: radio wave‚ infrared rays‚ ultra-violet rays and gamma rays Nature of an electromagnetic wave Electric and magnetic fields are not made up of matter. An electromagnetic wave consists of an electric and magnetic field and doesn’t need a medium to exist. They are the regions through
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International Journal of Medical and Biological Sciences 6 2012 Estimation of Electromagnetic Radiation from Base Station Antenna R. K. Singh Abstract—In the present paper‚ an observation of electromagnetic radiation from base station antennas installed for various communication purposes has been done on the basis of equivalent isotropically radiated power (EIRP) calculations. For this purpose‚ a typical wireless communication site has been selected where GSM‚ CDMA‚ 3G/UMTS and WiMAX antennas are
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