Refraction of light in water Refraction is the change in direction of a wave due to a change in its transmission medium. Due to change of medium‚ the phase velocity of the wave is changed but its frequency remains constant. This is most commonly observed when a wave passes from one medium to another at any angle other than 90° or 0°. Refraction of light is the most commonly observed phenomenon‚ When light travels from air into water‚ it slows down‚ causing it to change direction slightly. This
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REFRACTION THROUGH A LENS Lens: Lens is a transparent refracting medium bounded by two curved surface which are generally spherical. Types of lens: Generally there are two types of lens: 1. Convex lens: It is a lens which is thicker at the middle and thinner at the edges. It is also called converging lens as the light rays converges on passing through it at a point. Focal length of convex lens is taken as positive. 2. Concave lens: it is a lens which is thicker at the edges and thinner at the middle
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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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Examining the Refraction of Light in Prisms Questions 1. What is the relationship between the angle of incidence and the angle of refraction? The angle of incidence (formed by the ray of light travelling though air into a slab of rectangular perspex) is not directly proportional to the angle of refraction (angle formed between the ray travelling though perspex and the normal). The graph of the plotted angles of incidence against the angles of refraction is not a straight line and therefore demonstrates
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Lab reflection: Light reacts to different density in different ways. An example when it goes through a low density medium to a high density medium the angle of refraction decreases. With all the test done the angles of incident and reflection stayed the same. This is because with light what angle it approaches at is the angle the light will reflect back at. Also the angle of refraction depended on what the angle of incident and refraction were‚refraction is a dependent variable being the reason
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Law of Refraction- by Aydar Z. Hypothesis: During investigation‚ student will calculate 2 sets of Angles of Incidence & Refraction. The Hypothesis is that 2 outer angles would have very similar values (1st angle of Incidence and 2nd angle of Refraction)‚ while 2 inner angles will also have similar values (2nd angle of Incidence and 1st angle of Refraction). This Hypothesis is based on earlier test investigations where outer angles were very similar in a range of 3 degrees and inner angles were very
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The Index of Refraction was similar in each given medium and among the three mediums. This is obvious because (for example) in water‚ the indexes are all within 1.3 and for all three of the mediums there is a small range of 1.3-1.5 for the Index of Refraction. A light ray travelling from air to water will refract towards the normal more than a light ray travelling from water to air would. A light ray travelling from air to vegetable oil will refract towards the normal more than a light ray travelling
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White light and refraction: White light from the Sun is made up of all the various colours of visible light. Each of these colours has a different wavelength - red light (at one edge of the rainbow) has a wavelength of ~650 nm‚ whilst violet light (at the other edge) has a wavelength of ~400 nm. When light travels from one medium (say air) to another (water)‚ it changes speed‚ and if the light enters at an angle‚ it will bend. This is known as refraction. Shorter wavelength light (such as violet)
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The Refraction Of Light Through Different Media Mr. Dechene’s SNC2D January 21‚ 2013 Jordyn D. Testable Question: What effects do different mediums have on the angle of light? Hypothesis: If the light goes through different mediums‚ then the light will bend because it is slowing down as it passes through the medium. Equipment: Semicircular plastic dish Polar graph paper Ray box with single slit Water Syrup Experimental Design: A ray box with a single
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Aim:- To investigate the effect of changing the temperature of glycerin on the index of refraction. In this experiment I will be using a simple method‚ which needs the following materials 40ml of glycerin in a beaker‚ protractor‚ a pencil‚ a laser‚ a paper to draw boundaries‚ circular plastic plates‚ hotplate‚ ruler and a digital thermometer. In this experiment 1 trial will be conducted for glycerin with 70 Celsius degrees ‚66‚62‚58‚ and another trial with 10 Celsius degrees. Scientific Background:-
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