the light we see as a rainbow. The light hits the raindrop and is dispersed or split like going through a prism. Then‚ the separated colors are reflected off the backside of the drop and then exit where they are refracted again‚ as the index of refraction index changes between water and air. Each raindrop contributes only one color to the rainbow that you see. In looking at a rainbow‚ you are seeing the collective picture made by millions of raindrops. (figure 1) figure 1. The raindrops that
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Refractive Index: Refractive Index formula is use to find the change of speed of light as it travels from air into glass. It measure how much light slows down when it enters denser medium such as glass. The formulae is written as: To find out the refractive index‚ substitute these into the equation; The speed of light travels in air is 3 x 10^8-1 The speed of light travels in glass is 2 x 10^8 ms^-1 Refractive Index (Glass): 3 x 10^8 / 2 x 10^8 = 1.5 When light enters glass‚ its reflective index
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Introduction---------------------------------------------------------------[1] 2) Film deposition-----------------------------------------------------------[2] 3) Basic principle of x-ray reflectivity-------------------------------------[3] 4) Reflection and refraction at the boundary----------------------------[5] 5) X-ray reflectivity
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3A Wave Motion I 1 Chapter 1 Reflection of Light Reflection of Light Practice 1.1 (p. 5) 1 C 2 C 3 Luminous objects: candle flame‚ lighted (c) lamps and the sun Non-luminous objects: books‚ blackboards and the moon (Or other reasonable answers) 4 (a) Divergent (b) Divergent (c) 5 5 Parallel Angle of incidence = 90 25 = 65 Angle between the incident ray and the (a) reflected ray = 65 + 65 = 130 6 (a) Angle of incidence = 90 30 = 60 (b) (b) (c) Angle of reflection
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rectangular block of a transparent material. Aim: - To investigate the lateral displacement for different angles and how the displacement depends on the angle of incidence when a ray of light enters the Perspex block. Scientific Background: - Refraction occurs when the speed changes when the lights travels from one medium to another medium. If the light travels from a medium to a denser medium‚ the light slows down and consequently is refracted towards the normal. If the light travels from one
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The World Communicates 1. The wave model can be used to explain how current technologies transfer information * describe the energy transformations required in one of the following: mobile telephone‚ fax/ modem‚ radio and television Energy transmission in mobile telephone: sound wave energy (input sound) -> electrical (in transmitting phone) – > radio wave (transmit signal) -> electrical (in receiving phone) -> sound (output sound) * describe waves as a transfer of energy disturbance
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Reflection Experiment Background Information The law of reflection states that the angle of incidence will be equal to the angle of reflection. I.e. the angle that the light strikes the reflective surface at will be the same as the angle that it leaves it at. Aim To investigate the law of reflection and evaluate its accuracy. Hypothesis The law of reflection will be correct. Apparatus and Materials Light Box Mirror Protractor Blank Paper Safety This experiment is
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off‚ refraction is the bending of light when it travels through different medium. Therefore‚ the light will bend and it will shift away from the original location. However‚ I don’t know where the shift will be‚ but according to the research done on types of mirage‚ I believe that there will be a downwards shift. This is a result of an inferior mirage due to the warmer air density underneath the cooler air. Originally‚ the light is expectedly traveling in a straight line. Due to the refraction and
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bands of resistant and weak rock which when in contact with the discordant waves makes the soft rock erode much quicker to form bays. The Bay is made bigger by the spray from the waves also causes chemical weathering on the cliffs of the soft rock. Refraction of waves from the headland‚ these waves drift inwards towards the bay ‚ these waves have more of an effect on the weaker rock so it erodes rapidly. Headlands are formed when the soft rock has retreated to form a bay which leaves a headland sticking
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the signals. The signals sent and received are coded voice messages and computer data. Optical fibres use light to carry information between too different sources. This system works on two key optical properties: Total internal reflection and refraction. Optical fibres are
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