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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such that it could only have detected the waves if they had been bent‚ through refraction or reflection. To measure the wavelength‚ two beams of waves were sent‚ one directly to a detector‚ and another reflected from a zinc plate 12m from the source‚ to the detector. The detected waves interfere both constructively and destructively and‚ from this pattern‚ the wavelength was calculated‚ at approximately four metres. Using this‚ and the frequency of oscillation in the circuit he gained a measurement
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longitudinal wave‚ focusing on the question: Does a change in the frequency of a wave result in a significant and convincing change in the speed of the wave? Hypothesis: Changing the frequency of the wave will not result in a change in speed because the wavelength will change proportionally as in theory. Student Designed Investigation Procedure/ Planning Procedure: 1. Three students would get into a group. 2. A Slinky would be spread along a table or along the floor and set up as it shows on the
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ACCIDENT IDENTIFICATION USING RF AIM: The aim of this project is to implement an accident identification system wirelessly using one of the wireless communications Radio Frequency. DESCRIPTION: Generally we don’t have any information while our closest friends or family members met an accident at some distance. Due to that we may face severe situations at sometime. To avoid this problem we are using accident identification system using RF‚ by this we get the intimation
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Mg = 9.8 N. Mode Signal Generator Frequency (Hz) Wire frequency (Hz) Node to node distance (m) Wavelength (m) First 39 78 54.9 109.8 Second 75.9 151.8 27.8 55.6 Third 117 234 18.3 36.6 Fourth 160.4 320.8 14 28 Fifth 198.95 397.9 10.1 20.2 Note: The Wire frequency is double the Signal Generator Frequency Node to node distance where λ is the wavelength/ Plot the frequency versus n? Deduce from the slope of your straight line the linear density‚ ‚ of the
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EC0322 – MICROWAVE AND OPTICAL COMMUNICATION LABORATORY MANUAL DEPARTMENT OF ELECTRONICS AND COMMUNICATION RAMPURAM CAMPUS LAB HANDLERS HOD/ECE KALAISELVI.D SANDHIYA.A. EXP 1 - .STUDY OF MICROWAVE SYSTEM AND COMPONENTS AIM: To study the Microwave system and components. MICROWAVE SYSTEM:
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RESUME Units of area = cm2‚ ft2 Units of volume = cm3‚ ft3 Type of wave: heat‚ sound‚ magnetic‚ light. -All waves carry energy from one location to another Sound waves (acoustic waves): Travels through a medium Are mechanical Are longitudinal Generally travels in a straight line Are best described as a series of compressions and rarefactions. Diagnostic ultrasound: uses mechanical
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water. On the other hand‚ sound and light waves travel in 3D space in all different kinds of directions. The change in pitch from high to low‚ depending on the movement of the observer can be seen through the example below. The sound waves change in wavelength‚ caused the change of frequency as heard by the observer. This is the evidence of the Doppler effect as shown below. Light waves also experience the Doppler Effect. As light waves come closer to the source‚ the
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LEADS College Defense Road Campus Time Allowed: 3 hours Paper A Max.Marks:50 Attempt any FIVE questions in all‚ selecting at least TWO questions from each section. All questions carry equal marks (Section -1) 1(a) what is meant by divergence of the vector field? Show that ������ �� = ��. �� where V is a vector field in three dimension ? (5) 1b) if ��(��‚ ��‚ ��) = 3�� 2 + 4�� 3 + �� 2 is a scalar field find the �������� ���� �� at point (1‚-2‚ 3)? (5) 2(a) Define elastic and inelastic collisions
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within the electromagnetic spectrum. Radio waves can be defined by their frequency (in hertz‚ after Heinich Hertz ‚ who first produced radio waves electronically)‚ which is number of times they pass through a complete cycle per second; or by their wavelength‚ which is determined by the distance (by meters) that is traveled from the crest of one wave to the crest of the next. Radio frequencies are measured in units called kilohertz‚ megahertz‚ and gigahertz. (1 kilohertz = 1000 hertz : 1 megahertz
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