Light Effects Refraction‚ reflection and dispersion are all processes which happen when a ray of light is shone at either a glass block‚ a mirror or a prism. The ray box is the light source. Mirror When the ray box is shone at a mirror the angle of incidence is always a few degrees different to the angle of reflection. For example‚ if you shine a light ray into a mirror at 60* then it will reflect out at about 57*. Glass Block If I shine a light ray into a glass block then the light would
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Mary Fenning Lab 12 Reflection‚ Refraction‚ & Lenses Introduction The purpose of is lab is to observe ray models of light and how light refracts and reflects through a straight line and Snell’s Law. Procedures Setup and materials: Part IV: Procedure: Using the slit plate observe the rays on the viewing screen set Rotate the slit plate until the slits are horizontal. Record what image looks like at the different angles Trace the rays onto a white piece of paper and extend the lines
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LIGHT- REFLECTION AND REFRACTION 01. What are the various uses of concave mirrors? 02. What are the various sign conventions for reflection by spherical mirrors? 03. A convex mirror used for rear view on an automobile has a radius of curvature of 3m. If a bus is located at 5m from this mirror‚ find the position‚ nature and size of the image. 04. What are the various factors of refraction of light? 05. (a) Define Power of a Lens. Write its SI unit. (b) Find the focal length of a lens
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The green line represents the original beam of light that is incoming from the laser. When light passes through the water tub‚ it undergoes both reflection from the surface and refraction. The yellow arrowed line shows the beam of light that is reflected and the red arrowed line shows the pathway of the light beam after it has undergone refraction. It can be noticed that there is a lateral displacement
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time period of a simple pendulum. 10. To determine Faraday’s constant. 11. To determine electrochemical equivalent of a material. 12. To study the validity of ohm’s law for different types of material. 13. To study various factors on which the internal resistance /emf of a cell depends. 14. To study variations‚ in current flowing in a circuit containing a LDR ‚ because of variation. a. In the power of the incandescent lamp used to ‘illuminate’ the LDR. (keeping all the lamps at a fixed distance)
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How does the Wavelength affect the Refractive Index? The aim of this experiment is to investigate the relationship between the refractive index and the wavelength. We will be testing 5 different wavelengths: 630nm (red)‚ 570nm (yellow)‚ 532nm (green)‚ 445nm (blue) and 405nm (violet). Figure 1 Figure 1 What is the refractive index? The refractive index is the measurement of how hard it is for light to pass through a certain substance‚ thus affecting the speed of light. By knowing the
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Investigating Snells Law Investigating Snell’s Law Research Question: The effect that the angle of incidence of white light has on the angle of refraction from one transparent medium to another. Introduction: Snell’s law state: When light passes from one transparent medium to another the rays of light refract (bend). Snell’s law (Law of Refraction) states that: n*=sinⅈsinr=n2n1=V1V2 for the purpose of this experiment we will be proving that: sinⅈsinr=n2n1 or n1sinⅈ=n2sinr where
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Comparative Study of the Concentration Dependence of Different Softdrinks Using Refractive Index ____________________________ A Research Presented to the Faculty of Holy Trinity College‚ Puerto Princesa City ______________________________ In Partial Fulfillment of the Requirements For the Subject Physics I ______________________________ By: Abadilla‚ Abraham F. Canon‚ Gaea A. Cuadra‚ Cristy Marie O. Faigao‚ Anna Margarita O. Magay‚ Mary Stephanie T. Mestidio‚ Teresa P.
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Relation between image & object distance of lens & its focal length: lens equation. 1/f=1/do+1/di Law of refraction: n1sin0=n2sin02. Condition for multiple slit interference maximum: dsin0=mlambda Approach to optics treats light as a ray phenomenon: geometric optics Index of refraction for an optical material is- speed in light of vacuum:speed of light in material Relation between the refractive index‚ the two surface curvatures & the focal length of lens: lensmakers equation Snells law results
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SUGGESTED INVESTIGATORY PROJECTS CLASS XII 1 To study various factors on which the internal resistance/emf of a cell depends. 2. To study the variations‚ in current flowing‚ in a circuit containing a LDR‚ because of a variation. (a) in the power of the incandescent lamp‚ used to ‘illuminate’ the LDR. (Keeping all the lamps at a fixed distance). (b) in the distance of a incandescent lamp‚ (of fixed power)‚ used to ‘illuminate’ the LDR. 3. To find the refractive indices of (a) water (b) oil
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