WebMar 15, 2014 · Ray Optics Class 12 Part-2. 1. RAY OPTICS - II 1. Refraction through a Prism 2. Expression for Refractive Index of Prism 3. Dispersion 4. Angular Dispersion and … WebMay 11, 2024 · Ray Optics Notes Chapter 9 Class 12. 17. Total Internal Reflection (TIR) When a ray of light travelling from denser medium to rarer medium is incident at the …

Ray Optics and Optical Instruments Notes Class 12 Physics Notes

WebMar 13, 2015 · This site has Class Notes, Testpaper questions, homework help, summaries, etc related to all the subjects of CBSE Class XI (11) and XII (12) following NCERT Books. Friday, 13 March 2015 Optics (Ray Optics and Wave Optics) - Important Derivations - … WebSolution. Let c 1 and c 2 be the velocities of light in air and glass respectively. Using the definition of refractive index. μ = c1/c2. orc 2 = c1/ μ. c 2 = 3 x 108/1.5 = 2 x 108 m/s. Since frequency remains same when light passes from one medium to another. Therefore c 1 = λ 1 f c 2 = λ 2 f. Now μ = c1/c2 = λ1/λ2. dark heather t shirt color

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WebThe distances measured in the direction of incident ray are positive and in opposite direction of incident ray are negative. 3. The heights measured upwards from principal axis are … WebMay 11, 2024 · Ray Optics Notes Chapter 9 Class 12. 17. Total Internal Reflection (TIR) When a ray of light travelling from denser medium to rarer medium is incident at the interface of two medium at an angle greater than the critical angle for the two media, the ray is totally reflected back to denser medium. This phenomenon is called Total Internal … WebMay 7, 2024 · Optics Class 12 Notes. 4. Laws of Reflection. Two laws of reflection are given as below: (i) The angle of incidence i is equal to the angle of reflection r. i.e. ∠i = ∠r. (ii) The incident ray, reflected ray and normal to the reflecting surface at the point of incidence all lie in the same plane. 5. Total number of images formed by two ... dark heather vs charcoal