Lab to measure the speed of Sound Name: Nandu Pokhrel Jan 5th 2015 Abstract: The objective of this lab is to determine the speed of sound using the knowledge of waves and sounds. In this experiment you will learn how to measure the speed of sound by holding a vibrating tuning fork over an open tube of water
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regarding tsunamis. Survey the site. A. Select the five facts about tsunamis that were the most interesting or surprising to you. Make a list of your facts. 1. A tsunami is made up of a series of traveling ocean waves of extremely long wavelength. 2. They are triggered by earthquakes and undersea volcanic eruptions and deep sea landslides. 3. The wave shape changes and the height increases as it approaches the coastline. 4. Far field tsunamis have a long travel time so it is
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resonances. In this lab we focused primarily on using standing sound waves (compressional waves) created by tuning forks in order to determine the speed of sound in air in a tube when it reaches resonance. v=λf v speed of sound in a medium (m/s) wavelength of the waves (m) frequency of the sound source vibrations (Hz)
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by which the wavelength and the velocity of the radiation are reduced with respect to their vacuum values: The speed of light in a medium is v = c/n‚ where c is the speed in vacuum.[1] Similarly‚ for a given vacuum wavelength λ0‚ the wavelength in the medium is λ=λ0/n. This implies that vacuum has a refractive index of 1. Historically other reference media (e.g.‚ air at a standardized pressure and temperature) have been common. Refractive index of materials varies with the wavelength. This is called dispersion;
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Electric field- responsible for most phenomena (transmission reflection‚ refraction and absorption) • Magnetic field responsible for absorption of RF waves in NMR Wave Properties of EM Radiation • Velocity‚ c = 3.0 × 108 m/s (vacuum) • Wavelength‚ λ characterizes type of radiation‚ units of length (e.g.‚ nm for Vis and UV‚ Aº for Xray) 1 • Wavenumber υ = ‚ cm-1 λ • Frequency‚ ν = c/λ‚ measured in s–1 (Hz) • Frequency of a particular light wave is invariant (fixed by the source); c varies
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prism‚ usually made of glass‚ used to split beam of white light into its component colors. When light is refracted through a prism it is dispersed into its constituent colors‚ and the angle at which the light emerges from the prism depends upon its wavelength. A prism spectrometer can be used to measure the
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grooves per cm on a CD Theory review The groove spacing is also called the "track pitch". It is the distance between each track. the shorter the wavelength of the laser light they use the closer they can make the grooves and the more information they can get on the disk. Also notice however that the track pitch decreases more rapidly than the wavelength of the lasers in the above table‚ this is because you can also reduce the track pitch if you increase what is called the Numerical aperture of the
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application of soap and water. 3) Chemistry in everyday life for kids can also include why vegetables are colored. Colored vegetables consist of chemical compounds called carotenoids which have an area known as the chromophore. It absorbs certain wavelengths of light and thus there are colored vegetables. 4) Food is cooked because of the steam that’s present either in the water added or that which is present inside the food items. 5) Onions make you cry due to the presence of sulfur in the
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Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase
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analog signal without modulation using a low-pass channel. Broadband transmission means modulating a digital or an analog signal using a band-pass channel. 2. Optical signals have very high frequencies. A high frequency means a short wavelength because the wavelength is inversely proportional to the frequency ( = c/f)‚ where c is the propagation speed in the media. 3. The frequency domain of a voice signal is normally continuous because voice is a nonperiodic signal. 4. This is broadband transmission
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