the visible light spectrum. On one end of the spectrum you have red and on the other you have Violet. Red is red because its wavelengths are larger and has a larger Frequency. A frequency is the level of energy is it giving off and is determined by its wavelength‚ the larger the wavelength the higher the frequency. Blue is blue because it has a smaller wavelength and a higher frequency. If you were to ask a modern physicist "What is light?" he would probably say "An electromagnetic wave". What’s an
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second is called its A) wavelength B) frequency C) crest D) trough E) none of the above 33) Which color of the 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
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•Explain how the radiating electric field (or electromagnetic signal) is produced when radio stations broadcast. A radio wave (radiating electric field) propagates out from the source‚ traveling at the speed of light. The source‚ for example an antenna‚ creates oscillating electric(E)/ magnetic(B) fields. These fields are perpendicular not only to each other but to the direction of the traveling wave‚ and travel away from the antenna. The electromagnetic wave is‚ therefore‚ a transverse wave. The electric/
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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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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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ELECTROMAGNETIC INDUCTION Electromagnetic induction is the production of an electromotive force across a conductor when it is exposed to a varying magnetic field. It is described mathematically by Faraday’s law of induction‚ named after Michael Faraday who is generally credited with the discovery of induction in 1831. Electromagnetic induction was discovered independently by Michael Faraday and Joseph Henry in 1831; however‚ Faraday was the first to publish the results of his experiments.[4][5] In
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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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Now. 1) In this lab‚ you will use the Blackbody Spectrum Simulation to investigate how the spectrum of electromagnetic radiation emitted by objects is affected by the object’s temperature. In this simulation‚ you can input the temperature and observe the spectrum of the radiation emitted. a) The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star‚ we can tell something
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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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