EXAMPLE 6.7 Light travelling through transparent oil enters in to glass of refractive index 1.5. If the refractive index of glass with respect to the oil is 1.25, what is the refractive index of the oil? Solution Given, ngo =1.25 and ng =1.5 Refractive index of glass with respect to oil, Rewriting for refractive index of oil, The … See more Prove that when a reflecting surface of light is tilted by an angle θ, the reflected light will be tilted by an angle 2θ. Solution For the reflecting surface AB, the incident … See more What is the height of the mirror needed to see the image of a person fully on the mirror? Solution Let us assume a person of height h is standing in front of a … See more An object is placed at a distance of 20.0 cm from a concave mirror of focal length 15.0 cm. (a) What distance from the mirror a screen should be placed to get a … See more Given, f = –15 cm, u = –20 cm As the image is formed at 60.0 cm to the left of the concave mirror, the screen is to be placed at distance 60.0 cm to the left of the … See more WebApr 7, 2024 · Chapter 9 - Ray Optics and Optical Instruments are categorised under the broader concept of optics in physics. It is one of the most important chapters of physics. As far as the CBSE board exam is concerned, the solutions to NCERT class 12 physics chapter 9 ray optics and the optical instrument are quite crucial to prepare.
Geometrical Optics - Numerical Problems – Class 10 Physics
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Unit I Laser and Wave Optics Numericals PDF - Scribd
WebEnergy of one photon 2.86 10. 8. . If the half-width of the 10.6 m transition of a CO2 laser is 60 MHz, calculate the coherence length. of the laser. If the cavity length is 2m, show that not more than one mode will oscillate. Sol: Given: = 60MHz ; = 10.6 m; L = 2m. 2. f … Web7 hours ago · Marking scheme for numerical based questions was +4 for correct response, -1 for incorrect response and 0 in all other cases. Total marks of this section were 100. WebSep 3, 2024 · Numericals on AberrationTopic-1 numericals based on Chromatic & spherical Aberration if any doubt write in comment box. how to say perpendicular