Thomas Young and the Wave Nature of Light Historical Background Isaac Newton was famous not only for formulating the laws of motion but also for pioneering in the study of optics. He used a prism to show that sunlight was a mixture of the colors that make up the rainbow. In his Opticks (1704), Newton argued that light was made up of tiny particles. Slightly earlier, the Dutch physicist Christiaan Huygens wrote a Treatise on light, in which he proposed that light was a wave. It was only in 1789 that
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What exactly is the electromagnetic spectrum? Is a continuous range of wavelengths, which includes gamma rays, ultraviolet waves and other forms of electromagnetic radiation. How does the issue of scarcity and interference relate to the electromagnetic spectrum? The spectrum is considered scarce because of the limited number of frequencies for operation and two parties cannot broadcast on the same frequency in the spectrum. Interference not only can be caused by broadcasters but by natural phenomenons
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* Earthquake * Bomb blast * Operation of reciprocating and rotary machines and hammers * Construction operation such as pile driving * Quarrying * Fast moving traffic including landing aircraft * Wind * Loading due to wave action of water * Etc * The nature of each of these loads is quite different from the nature of the loads in the other cases. * Earthquakes constitute the single most important source of dynamic loads on structures and foundation.
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methods of improving measurement accuracy, dealing with floor noise and averaging were all explored. Overall this lab was a useful tool in understanding the lab equipment. RESULTS AND DISCUSSION: PART 1 - QUESTION 1 i) A 1 kHz, 2.78 VPP sinusoid wave is displayed with trigger level at 200 mV (rising edge). See Fig.1 Fig.1: Time Domain Representation of Signal Power dissipated in the load: P_load=〖V_rms〗^2/R , where V_rms=V_amp/√2 and V_amp=V_PP/2 So, V_amp=(2.78 "V" )/2=1.39 "V" and V_rms=(1
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Wireless Networking Chapter 3 Study Guide True/False ___T 1. Electromagnetic waves travel through space at the speed of light. ___F 2. Whenever a wave moves to the maximum voltage, then down to the minimum voltage, and then returns back to the starting point, it has finished two cycles. ___T 3. The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage). ___F 4. One of the units of measurement used to represent RF signal strength is Ohms
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interference, and diffraction in two dimensions and relate to the waves on a spring demo Everybody has at some time thrown a pebble into a puddle and observed the ripples spreading across the surface. Some of us don’t stop until the puddle has been completely filled with every loose piece of debris in the vicinity. Now let’s dive in a bit deeper into the physics. Select the Wave Interference simulation from the Sound and Waves folder 1) Before you change any settings a. What is the shape
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spectrum chart Materials for Exploring Further: * Plane mirror * Ripple tank, with sheet of plastic or glass that fits on part of the bottom of the tank, and objects that can be used as boundaries to obstruct the pathway of waves * Wave-motion rope * Tuning-fork kit * Stroboscope * Resonance-tube kit In this lab, you will investigate the relationship between the focal lengths of a mirror and lens and the type of image that is generated. Procedure
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1. Crosstalk- is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. 2. Waveguides- is a structure that guides waves, such as electromagnetic waves or sound waves. 3. FTTH- is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunications. 4. Simplex- is a simplex that is also a regular polytope
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the capacitors if they are unable to be measured. Construct the basic Wien bridge that is illustrated in Figure 33-2 and adjust the potentiometer so that the circuit oscillates. Because it is really sensitive, there will not be a clear defined sine wave as it is being controlled. An automatic gain control is needed to control the unstable gain in the first part. Field-effect transistors are frequently used because they can be used as voltage-controlled resistors for small applied voltages. Construct
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Roger Truong Week 4 Physics Notes Experiment 1 * Rise and fall is pressure in the sound wave makes the flame move * The rise and fall in pressure makes the click sound * The rise and fall in the disturbance to what brings the sound to your ear * The square waves to what makes the flame move and bring the sound to your ear * The air molecules don’t move the disturbance does * For a 0.5 Hz your hear a click and the flame moves and resets * For 100 Hz the flame remains
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