PPT-Interference of light Lecture-3

Minati Barman Associate professor Department of Physics JN College Boko Intensity distribution curve Intensity at any point of the screen is expressed as I a₁² a₂²2a₁a₂ cos. Wave Optics. The wave nature of light is needed to explain various phenomena. Interference. Diffraction. The . particle nature of light was the basis for ray (geometric) . optics. Light waves interfere with each other much like mechanical waves do. Dr. Mahender Singh. Associate Professor in Physics. Post Graduate Govt. College Sector-11. Chandigarh. Interference. The term interference refers to phenomenon involving superposition of waves leading to a modification of their intensity in the region of superposition.. Up to now we have been studying . geometric optics. . Today we will look at effects related to the . wave nature of light –. . physical optics. polarization. interference. thin film interference. Physics 2102. Gabriela Gonz. á. lez. Light is a wave. When two beams of light combine, we can have constructive or destructive “interference.” . http://www.colorado.edu/physics/2000/applets/fourier.html. 26, 27, 28. Diffraction of Light. Key Points. Diffraction by a Single Slit. Diffraction in the Double-Slit Experiment. Limits of Resolution. Diffraction Grating and Spectroscopy. Polarization. References. Up to now we have been studying . geometric optics. . Today we will look at effects related to the . wave nature of light –. . physical optics. polarization. interference. thin film interference. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 35-1. Light as a Wave. 35.01 . Using a sketch, explain Huygens’ principle. . 35.02 . With a few simple sketches, explain refraction in terms of the gradual change in the speed of a wavefront as it passes through an interface at an angle to the normal. . Dr. Quantum. 27.1 . The Principle of Linear Superposition. When two or more light waves pass through a given point, their electric. fields combine according to the principle of superposition.. The waves emitted by the sources start out in phase and arrive at . Electromagnetic Spectrum and Spectroscopy. 0. Innovators Presentations. Pictures from Week 3 Conservatory Field . Trip. Questions from reading assignments?. Light moves at light speed. Wave Properties of Light. Physics . 2212. Light. Light has Wave properties. Light can Diffract. Light can Interfere. Constructively. Destructively. Wave Fronts. Lines that are perpendicular to the motion of the wave, indicate the location of the crests in the waves that are traveling together.. Minati. Barman. Head, Department of Physics. J N . College,Boko. Contents:. Conditions of observable interference. Fresnel’s biprism Experiment. Conditions of observable interference:. To obtain well-defined interference fringes following conditions must be satisfied-. Bellringer – 2 . mins. to hand in. Describe why you think rainbows sometimes pop up after it rains.. DO WORK. STOP. Objectives. Be able to fully explain exactly how rainbows, sunsets, sunrises, polarization, and diffraction work.. Associate Professor in Physics. Post Graduate Govt. College Sector-11. Chandigarh. Interference. The term interference refers to phenomenon involving superposition of waves leading to a modification of their intensity in the region of superposition.. . J P SINGH. Associate Professor in Physics. Post Graduate Govt. College Sector-11. Chandigarh. Interference. The term interference refers to phenomenon involving superposition of waves leading to a modification of their intensity in the region of superposition..