Lecture 18 - Wave Theory of Light Overview. View Light In Physics PPTs online, safely and virus-free! GOOD MORNING 2. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. We do not introduce or supply tutors to those seeking tuitions, nor do we select or propose specific tutors to those seeking tuitions or learners to tutors. c) Frequency of light. In the process the character of the light may be changed. What is the focal length of the lens? Presentation Summary : Physics: Light and Color . For each approved PPT you will get 25 Credit Points and 25 Activity Score which will increase your profile visibility. In 1678, Christiaan Huygens (1629–1695) published Traité de la Lumiere, where he argued in favor of the wave nature of light. The seven colors of light are split up into a line that is giving an attractive look for the audience. Powerpoint presentations on a huge range of physics topics. Imm b) c) d) Solution: 1.1 mm 14 mm 1.4 mm 8.7 mm image dis tan ce object dis tan ce 4.0cm image height object height image height object height image dis tan ce object dis tan ce 4.0 14 = 0.28 0.28 Note : The image appears smaller than object (M< 1), is virtual (di negative), and upright (all virtual images are upright) Answer : a), Visible Light Spectrum Range Violet 4000 AO 400 nm Indigo 4250 AO 425 nm Blue 4700 AO 470 nm 4,000 400 nm 4,250 Å 5500 AO 550 nm Yellow 6000 AO 600 nm Orange 6300 AO 630 nm Red 6650 AO 665 nm Inm = 10 Blue Aqua Yellow Orange Red 425 nm , 700 470 nm ,900 5,500 6,000 Å 6,300 Å 6,650 Å 7,000 Å 700 nm. Presentation on lights [ physics ] 1. You can change your ad preferences anytime. Review worksheet. niSin9i = nrSin9r Apply Snell's law equation: niSin480 = Sin900 n I .743 = I 1 .743 or n1Sin01= n2Sin02 Answer : a), 480 640 820 Interface Medium 1 Material 350 Normal Normal 450 900 600 Air n 2 Medium 2, (ii) Focal Length (f) (iii) 6- Rank the converging lenses in increasing power (from least powerful to most): L/ (i), (ii), (iii) b) (iii), (ii), (i) c) (ii), (i), (iii) d) (iii), (i). KS3 Physics. Preview. a) 0.11 m b) -0.11 m c) 0.50 m -0.50 m Solution: 1 Using the thin lens equation: 1 1 1 1 1 .25m 0.167m f 1 — —2.0m 1 f = -0.50m Is the lens convex or concave? The template design is good for the educational PPT topic to describe the splitting of seven colors from white light. Loading... Save for later. The PPT presentations crafted … 1. KS3 year 8 physics LIGHT powerpoints. Selina Concise Physics Class 6 ICSE Solutions Chapter 5 Light includes all the important topics with detailed explanation that aims to help students to understand the concepts better. WINNER! The Nature of Light •As a wave… –A small disturbance in an electric field creates a small magnetic field, which in turn creates a small electric field, and so on… •Light propagates itself “by its bootstraps!” –Light waves can interfere with other light waves, canceling or amplifying them! Here I try to describe about light, properties of light, phenomenon of light. Light reflected from the road is polarized in the horizontal plane (parallel to the road), so it do not pass through the vertically polarizing sunglasses and thus the glare is reduced. Light waves travel in straight lines. Electrical, Electronics, Physics (45 Slides) 4.6 40 customer reviews. Or = sin-1(.642) = 39.96 400 Answer : c) niSin9i = nrSin0 = (0642), 4- When yellow light of wavelength 580 nm passes from air (n =1.00) into water (n=l .33), how does each of the following change, and what are their values in water? Please enter the OTP sent to your mobile number: A Presentation On the Physics of Light Starting With Reflection, Refraction, Diffraction. Now customize the name of a clipboard to store your clips. In this ppt we learn about basics or fundamental of alternating current . CHAPTER - 10 LIGHT : REFLECTION AND REFRACTION Class :- X Subject :- Science Name of Teacher :- Mr. V. K. Pathak (PGT Physics) School :- KV RRL Jorhat, Assam * The lens forms an image that is 0.167 m away from the lens, upright, and on the same side of the lens as the object. Show all files. LINEAR DIFFERENTIAL EQUATION & BERNOULLI`S EQUATION, Customer Code: Creating a Company Customers Love, Be A Great Product Leader (Amplify, Oct 2019), No public clipboards found for this slide. Boardworks Ltd 2006 2004 What is light? Physical measurement of light ... Microsoft PowerPoint - 06 Basic physics of light.ppt Author: PHYS 201: Fundamentals of Physics II. The wave nature of light was first illustrated through experiments on diffraction and interference. Great for KS1 KS2 KS3 KS4 and post 16 A level lessonplans, and more. Free + Easy to edit + Professional + Lots backgrounds. PPT that works through the key points about refraction of light and culminates in a task slide that instructs the students to complete the refraction practical and make a conclusion. The template design is good for the educational PPT topic to describe the splitting of seven colors from white light. (Air is outside the material). Describe the image di — —1. See our User Agreement and Privacy Policy. =1.35 b) c) d) Illustration 1.35 I .48 1.49 0.743 Solution: The critical angle is the angle of incidence (which is always in the more dense material) for which the angle of refraction is 90 degrees. Clear your doubts from … Light.ppt spanglerscience. Concave because focal point is negative (sign convention) Note: the sign convention must be used correctly to reach this answer, since it was stated that the image forms on the same side of the lens as the object, the image must be virtual and di must be negative (-0.167m) Answer : d), 8- A 14 mm tall object is 4.0 mm from a converging lens. Solution: When yellow light of wavelength 580 nm passes from air (n =1.00) into water (n=l .33), the speed of light decreases, the wavelength of light decreases, but the frequency does not change. = 8.57 x 101% lor 8.57 x 1014Hz Solution: The corresponding frequencies and energies for : a) 350 nm Wavelength : 1 C (3 x 108)m/s (350 x 10-9)m E = [(6.626 x 10-34)Js x (8.57 x 1014)s- Thus,E = 5.6 x 10 19] b) 750 nm Wavelength : c E=hf (3 x 108)m/s = 4x 1014s 1014Hz (750 x 10-9)m = [(6.626 x 10 34)Js x (4 x 1014)s-1] Thus,E = 2.65 x 10 19], Photon A Red Green InfraRed Visual X-rays avelength lar er the same smaller larger th smaller larger the same smaller larger the same smc Iler larger the same smaller Frequency larger the same smaller larger the same smaller larger the same S r arger the same smaller larger the ne smaller Energy larger the same smaller larger the same smaller larger the same smaller arger t e same smaller larger th smaller Velocit) in s ace larger the sam sma er he sa smaller e sa smaller larger e same er he same sma ler Photon B Blue Orange Visual Microwave Gamma-ray 2- Select the correct relationships Wavelength (in meters, X-Rays Ix 10 12 1 x 10 14 Wavelength (in meters) 4 x 107 High Energy Gamma Rays 1 x 104 Ultraviolet Rays Ix108 5 x 107 Infrared Rays Visible Light 6 x 107 Radar FM I x 102 TV Shortwave AM I x 102 Low Energy I x 104 Wavelength (in meters), 3- What is the angle of incidence on an air-to-glass boundary if the angle of refraction on the glass (n = 1.52) is 25 degrees? Power Sharing Class 10 Complete With Case Study Shreyaans Nahata. These are transverse waves, like the ripples in a tank of water. Electricity Class 10 Physics Chapter Complete with Formulae Shreyaans Nahata. Clipping is a handy way to collect important slides you want to go back to later. Free. At this speed it can go around the world 8 times in one second. Light is a transverse, electromagnetic wave that can be seen by the typical human. A light wave is an electromagnetic wave which has both an electric and magnetic component associated with it. The effect is found to be significant when the dimension o the diffracting element becomes comparable with the wavelength of light. Standing Ovation Award: "Best PowerPoint Templates" - Download your favorites today! Created: Dec 4, 2013 ... Read more. If you continue browsing the site, you agree to the use of cookies on this website. Like all electromagnetic waves, light can travel through a vacuum. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. DEFINITION OF LIGHT Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum . reflection 2. ppt, 3 MB. Popular Keywords. Workshop 3 Workshop 3 Dr Laila. Light travels at a speed of 300,000,000 metres per second, which is much faster than the speed of sound. ii) When light falls on objects, it reflects the light and when the reflected light reaches our eyes then we see the objects. ... For each approved PPT you will get 25 Credit Points and 25 Activity Score which will increase your profile visibility. On leaving the raindrop, the red rays have turned through a smaller angle than the blue rays, producing a rainbow. Light-human Eye and the Colourful World.ppt - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online.