PPT-UV Light Ultraviolet Light

Ultraviolet UV light falls in the range of the EM spectrum between visible light and Xrays UV light which comes from the sun is invisible to the human eye It makes blacklight posters glow and is responsible for summer tans and sunburns. PREPARED UNDER THE GUIDANCE OF. DR. ARUN KUMAR. ASSTT PROFESSOR IIT DELHI. Prepared by:. Purbashree Sarmah(2014CEV2092). Surya Sujathan(2014CEV2094). Madhur Chachondia(2014CEV2586). Ganga . water facing . Astronomy: The Science of Seeing. Mastering Astronomy. Go to MasteringAstronomy.com. Register using:. Access Code:. WSSBCW-SNELL-POIND-SPINA-GIGOT-FLEES. ClassID. : NORDGREN2014. We will start using for reading and homework due next Monday.. Screens. ‘How it works?’. Cathode Ray Tubes. Output devices. Cathode Ray Tubes. Television screens used to use a technology called, cathode ray tubes (CRT). An electron gun emitted electrons inside a glass tube onto phosphor atoms at the end of the glass tube, causing the phosphor atoms to light up. The electron gun scanned the screen many times per second, producing an image. . 1. Dr. Nikhat Siddiqi. THE NATURE OF LIGHT. Light is composed of electric and magnetic fields, which . are mutually . perpendicular and which . radiate out from a source. in all directions (Figure . ). . Copyright and Terms of Service. Copyright © Texas Education Agency, 2011. These materials are copyrighted © and trademarked ™ as the property of the Texas Education Agency (TEA) and may not be reproduced without the express written permission of TEA, except under the following conditions:. Claude Monet’s Water Lilies. (1840-1926). Impressionists. Short loose brush strokes. Different colors allowing eyes to mix the colors. Vincent Van Gogh’s Sunflowers. (1853 – 1890). Post Impressionists. Light. What is light?. . It is the electromagnetic . radiation that can be . perceived . by the human eye. It is made up . of.  . electromagnetic waves.  with wavelengths between . 4 . × 10. -7. Extreme Ultraviolet Light Sources Mark Hrdy 12/05/2017 Outline Background/Motivation Resolution Limit UV Light Generation EUV Introduction Technical Challenges: Optics Masks/Pellicles Light Production Extreme Ultraviolet Light Sources Mark Hrdy 12/05/2017 Outline Background/Motivation Resolution Limit UV Light Generation EUV Introduction Technical Challenges: Optics Masks/Pellicles Light Production noticing a momentary streak of light in the night sk y , what they really see are meteors burning up as they enter the Earth ’ s atmosphere—nothing to do with stars at all. Howeve r , Mir U-AU-BU-CVACUU-UV100200280315400Hg - ow-pessueLamp 254 nm780Wavelength nm951 296-3480 454-2725 infoaquauvcom AquaUVcomResourcesAqua Ultraviolet has over four decades of experience in manufacturing a Ultraviolet light can be used to inactivate many types of organisms, including viruses, but it is currently known that UV light only works on surfaces or clear liquids such as water. . UV light radiation has been used for many years in pharmaceutical, electronic, and aquaculture industries as a disinfection medium. . Waves. What is a wave?. A wave is a disturbance that travels from one location to another location. The traveling disturbance in a wave is carrying energy (NOT matter). Waves that require a medium to travel through are . . light, the sun is still the major source of light in the world. The sun is both . beneficial. and. . hazardous. to our health.. Light has some interesting properties, many of which are used in.