The effect of different wavelengths of light on photosynthesis rate in spinach leaves Abstract: This experiment was performed to test the effect of different wavelengths of light had on photosynthesis. According to the results gathered we can say that if two plants are put under different lights‚ one green and one a normal light‚ that the plant under the normal light will perform photosynthesis at a higher rate than the plant under the green light. This experiment is important because it shows
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Photosynthesis Lab Answer Key Vocabulary: carbon dioxide‚ chlorophyll‚ glucose‚ limiting factor‚ nanometer‚ photosynthesis‚ wavelength Prior Knowledge Questions (Do these BEFORE using the Gizmo.) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] • To survive‚ what gas do we need to breathe in? Oxygen • Where is this gas produced? In plants Gizmo
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detonations of underwater nuclear devices)‚ landslides‚ glacier calvings‚ meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami.[3] Tsunami waves do not resemble normal sea waves‚ because their wavelength is far longer. Rather than appearing as a breaking wave‚ a tsunami may instead initially resemble a rapidly rising tide‚ and for this reason they are often referred to as tidal waves. Tsunamis generally consist of a series of waves with periods
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photovoltaic cells are non-mechanical devices‚ usually made of silicon‚ that absorb sunlight to create electricity. In a solar cell energy is absorbed as wavelengths of light. In the light spectrum wavelengths have various levels of energy. We see some of these wavelengths as different colors. Solar cells are manufactured to absorb only certain wavelengths in order to collect the most energy. When enough energy is absorbed by the silicon (or semiconductor)‚ it is dislodged from that material’s atoms
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Table of Content TABLE OF CONTENT ACKNOWLEDGEMENT 7 1.0 Introduction 8 2.0 History of Optical Fiber 9 3.0 Construction of Optical Fiber 12 4.0 Guiding Mechanism in Optical Fiber 13 5.0 Basic Components of OFC 15 5.1 Transmitter 15 5.2 Fiber 15 5.3 Receiver 15 5.4 Process 16 6.0 Principle of optical transmission 16 6.1 Refractive Index 16 6.2 Snell’s Law 17 6.3 Critical Angle 17 6.4 Total Internal Reflection 18 6.5 Acceptance Cone 19 6.6 Numerical
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FE1002 PHYSIC 2 Tutorial 1– [optic] 2007/2008 Semester 2 FE1002 Physic 2 Tutorial 1 – Optic QUESTION 1: light with a wavelength of 700nm is incident on the face of a fused quartz prism (n = 1.46 at 700nm)at an angle of 75˚ (with respect to the normal to the surface). The apex angle of the prism is 60.0˚. Calculate the a) b) c) d) angle of refraction at this first interface angle of incident at this second interface angle of refraction at the second interface and angle between the incident and
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radiation by an electron as it is promoted from the HOMO to the LUMO‚ we can derive the following expression for the energy absorption E. E =h2 [2ni+ 1]/ (8mL²) (2) the absorption wavelength for the HOMO _ LUMO transition is
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location until you have located the point of maximum sound intensity. This is the resonance point. Measure the distance from the top of the water to the top of the glass tube. This is the length of the resonance length and corresponds roughly to ¼ wavelength‚ as shown in the diagram. Other resonance conditions may be possible if your tuning fork is matched appropriately with the tube. Measure the temperature of the room in 0C and the inside diameter of the resonance tube. 3.
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zone for interrogation. As cells flow through this interrogation zone they scatter the light‚ at this point any fluorescent compounds that are inside or attached to the cell can be excited by the light source and emit light themselves‚ at a longer wavelength to the excitation source. Multiparametric information about the physical and chemical characteristics of a cell can be determined from the detection and analysis of both the scattered and fluorescent light. Fluidics There are 3 key components
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blossoms snipped off and stored in a freezer. After 10 days‚ floral anthocyanins were extracted with acidified methanol‚ and analysed using a Vernier Spectrophotometer. Absorption spectrums were analysed to examine absorbance levels at different wavelengths for each illuminance level. My experimental results showed that decreased illuminance levels resulted in increased total absorbance‚ suggesting increased anthocyanin biosynthesis. Two
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