http://localhost:8080/jspui/handle/123456789/232 2026-04-05T12:14:53Z http://localhost:8080/jspui/handle/123456789/269 Title: Interference in Thin Films Session 4 (Newton's Rings) VL Authors: Badhe, Sanjiv Abstract: This is a 4th session on Interference in Thin Films. In this session, Discussion on Newton’s Ring Experiment is done. Relation for Diameter of Newton’s ring is obtained and based on this relation, questions like what will be the intensity of central spot, how to determine wavelength of light or radius of curvature of lens and refractive index of liquid are answered. At the end some problems based on Newton’s ring experiment are also solved. 2020-09-26T00:00:00Z http://localhost:8080/jspui/handle/123456789/238 Title: Interference in Thin Films Session 3 (Wedge shaped film) Authors: Badhe, Sanjiv Abstract: This is a 3rd session on Interference in Thin Films. In this session, the interference in thin film of non-uniform thickness (Wedge shaped film) is explained. Conditions for maximum and minimum in case of interference in Wedge shaped film are obtained. Questions like why do we get linear fringes? How to determine diameter of a thin wire, wavelength of light or refractive index of liquid using wedge shaped film experiment are also discussed. At the end some problems based on Wedge shaped film are also solved. 2020-09-22T00:00:00Z http://localhost:8080/jspui/handle/123456789/236 Title: Interference in Thin Films Session 2 (Thin Film of Uniform Thickness) VL Authors: Badhe, Sanjiv Abstract: This is a 2nd session on Interference in Thin Films. In this session, the interference in thin film of uniform thickness is explained. Conditions for maximum and minimum in case of interference in thin film of uniform thickness (Reflected system and Transmitted system) are obtained. Questions like why excessively thin film appears black? and Why do we see different colours on oil film or soap bubble film? are answered. How to get Anti reflecting film and fully reflecting film coating on the glass surface is explained. At the end some problems based on thin film of uniform thickness are also solved. 2020-09-22T00:00:00Z http://localhost:8080/jspui/handle/123456789/234 Title: Interference in Thin Films Session 1 (Huygens Wave theory and optical path difference) VL Authors: Badhe, Sanjiv Abstract: This is a 1st session on Interference in Thin Films. In this session, the prerequisites required to understand interference in thin films are discussed. The topics include introduction to Newton’s corpuscular theory of light, Huygen’s wave theory, Young’s double slit experiment, division of wave front and division of amplitude method to get interference, meaning of optical path, comparison between reflection and refraction and effect of reflection on the phase of the wave. 2020-09-22T00:00:00Z