Standing and travelling waves
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The document discusses the differences between standing waves and travelling waves. Standing waves bounce back and forth between boundaries, resulting in interference patterns that resemble a sine graph with points called nodes where the wave seems stationary. Travelling waves move in one direction without boundaries, so their interference is irregular and they have no nodes. Examples given are ocean waves which can behave as either standing or travelling waves depending on interference.
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Waves
1) Waves transfer energy through a medium from one point to another without the medium itself traveling.
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3) When two waves interact according to the principle of superposition, their individual displacements are summed at any given point. This can result in interference patterns with amplitudes that are enhanced or reduced.
Types of waves
The document discusses different types of waves including transverse waves, longitudinal waves, water waves, and Rayleigh surface waves. Transverse waves involve particles oscillating perpendicular to the direction of wave propagation. Longitudinal waves involve particles oscillating parallel to the direction of propagation. Water waves and Rayleigh surface waves involve a combination of both transverse and longitudinal motion. Rayleigh surface waves cause the most damage in earthquakes and involve both up-down and side-to-side particle motion.
interference_reflection_refraction_diffraction.pptx
Diffraction
The photograph clearly shows circular wavefronts spreading out from a small opening between two barriers. This is a classic example of diffraction, where a wave's propagation is altered as it passes by an obstruction or opening.
Topic 3 waves
This document provides an introduction to waves, including:
1. Waves transfer energy from one place to another without transferring matter. They can be transverse (perpendicular to direction of travel) or longitudinal (parallel to direction of travel).
2. Key wave properties are described, including displacement, amplitude, wavelength, frequency, and speed.
3. Experiments using a ripple tank allow observation of wave behaviors like reflection, refraction, and diffraction.
Waves
This document contains information about different types of waves including mechanical waves, electromagnetic waves, and gravitational waves. It discusses key wave properties such as amplitude, wavelength, frequency, period, and speed. It also covers topics like longitudinal and transverse wave motion, reflection, refraction, and standing waves. Examples are provided to illustrate wave phenomena in various contexts like sound waves, water waves, and seismic waves.
Wave Motion
The document discusses different types of waves and their characteristics. It defines key wave properties like amplitude, wavelength, period, frequency, and describes transverse and longitudinal waves. It also covers wave behavior at boundaries, including fixed ends that reflect inverted pulses, free ends that reflect identical pulses, and changes in medium that cause partial reflection and transmission.
Waves
Waves transfer energy through a medium without transferring matter. There are two main types of waves: transverse waves, where the medium's particles move perpendicular to the wave's direction; and longitudinal waves, where particles move parallel. Characteristics like wavelength, frequency, amplitude, and speed define a wave's properties. Energy is transferred through reflections, where waves bounce back at the same angle they arrive. Reflections can be partial or total, depending on the boundary material.
Chapter16openstax
- The document discusses transverse and longitudinal waves. Transverse waves have a disturbance perpendicular to the direction of propagation, while longitudinal waves have a disturbance parallel to the direction of propagation.
- It provides examples of different types of waves - ocean water waves are a combination of transverse and longitudinal waves, while waves on guitar strings are transverse. Sound waves in air and water are longitudinal.
- Differentiating between longitudinal and transverse waves is important because the energy and motion propagate in different directions for each type of wave. This affects how the waves behave and transfer energy.
Waves and sound
This document provides information about waves and wave phenomena. It discusses the key characteristics of waves like frequency, wavelength, amplitude, and speed. It explains different types of waves including transverse, longitudinal, and standing waves. The document also covers wave behavior at boundaries, interference, reflection, the Doppler effect, and more. Concepts are defined and illustrated with diagrams. The document is intended as a comprehensive reference on the physics of waves and wave motion.
Waves
Waves are disturbances that transfer energy through a medium. There are two main types of waves: longitudinal waves, where the disturbance is parallel to the direction of energy transfer; and transverse waves, where the disturbance is perpendicular. The key aspects of a wave include its amplitude, wavelength, frequency, period, and speed. Waves behave differently when they encounter boundaries, reflecting or transmitting depending on if the boundary is fixed, free, or a change in the medium. When two waves interact, they can undergo constructive or destructive interference based on whether their peaks and troughs overlap constructively or destructively.
What are waves
Waves transfer energy from one place to another through a disturbance or vibration in a medium. There are different types of waves including transverse waves, longitudinal waves, and surface waves which move media in different directions relative to the wave propagation. Waves are classified based on how the medium moves as the wave passes through.
Waves
The document discusses reflection, refraction, and diffraction of waves. A ripple tank experiment is described where a light shines through a tank of water onto a sheet of paper below, allowing the movements of water wave crests and troughs to be observed. Reflection occurs when waves bounce off barriers, following the law of reflection. Refraction is when waves change direction at a medium boundary due to speed and wavelength changes. Diffraction is the bending of waves around obstacles.
Waves in 2 Dimensions
The document discusses two-dimensional waves and their properties. It covers topics like reflection, refraction, diffraction and interference of water waves. Experiments using these wave properties can be demonstrated using a ripple tank, which allows visualization of wave behavior and measurement of wave characteristics like wavelength.
Interference
1) Wave interference occurs when two waves meet while traveling along the same medium, causing the medium to take on a shape resulting from the net effect of the individual waves.
2) Constructive interference occurs when wave displacements are in the same direction, like two crests or two troughs meeting, increasing displacement. Destructive interference occurs when displacements oppose each other, like a crest and trough meeting, decreasing displacement.
3) When waves interfere according to the principle of superposition, the resulting displacement at each location is the algebraic sum of the individual displacements. This can produce standing wave patterns with points of no displacement called nodes and maximum displacement called antinodes.
Waves
Waves can be described using several key characteristics:
- Amplitude is the maximum displacement from equilibrium.
- Wavelength is the distance between two consecutive crests or troughs.
- Frequency is the number of waves passing a point per unit time. Period is the inverse of frequency.
- Wave speed can be calculated as wavelength multiplied by frequency.
When waves encounter boundaries, they can be reflected, transmitted, or some combination of the two depending on whether the boundary is fixed, free, or a change in medium.
Waves
Waves can be transverse or longitudinal. Transverse waves oscillate perpendicular to the direction of travel, like water waves, while longitudinal waves oscillate parallel to travel, like sound waves. A wave is produced by a periodic vibration or oscillation that transfers energy through a medium from one point to another. Key properties of waves include wavelength, frequency, period, amplitude, and wave speed. Ripple tanks can demonstrate wave properties like reflection and refraction as waves interact with boundaries.
The Science of Waves
Learn the basic introductory about Waves.
Key Slides & Points:
1. Intro
2. Definition
3. Appearance & Behaviour
4. Types of Waves
5. Parts of a Wave
6. Dimensional Waves
Module No. 42
1. Wave mechanics was introduced by De Broglie in 1924 and is based on the idea that particles can be regarded as waves described by the Schrodinger wave equation.
2. Waves transfer energy but not matter. Different types of waves include mechanical, electromagnetic, and matter waves. Mechanical waves require a medium while electromagnetic waves do not.
3. The wavelength is the distance between two consecutive peaks or troughs of a wave. The velocity, wavelength, and frequency of a wave are related by the equation v = λf.
Wave behaviour
Reflection occurs when waves strike an impervious barrier at the same angle they struck it. Refraction causes waves to bend towards the normal when entering shallower water and away from the normal in deeper water. Diffraction causes waves to radiate and not travel in a straight line when passing through a gap equal to their wavelength.
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interference_reflection_refraction_diffraction.pptx
interference_reflection_refraction_diffraction.pptx
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Microbial interaction
Microorganisms interacts with each other and can be physically associated with another organisms in a variety of ways.
One organism can be located on the surface of another organism as an ectobiont or located within another organism as endobiont.
Microbial interaction may be positive such as mutualism, proto-cooperation, commensalism or may be negative such as parasitism, predation or competition
Types of microbial interaction
Positive interaction: mutualism, proto-cooperation, commensalism
Negative interaction: Ammensalism (antagonism), parasitism, predation, competition
I. Mutualism:
It is defined as the relationship in which each organism in interaction gets benefits from association. It is an obligatory relationship in which mutualist and host are metabolically dependent on each other.
Mutualistic relationship is very specific where one member of association cannot be replaced by another species.
Mutualism require close physical contact between interacting organisms.
Relationship of mutualism allows organisms to exist in habitat that could not occupied by either species alone.
Mutualistic relationship between organisms allows them to act as a single organism.
Examples of mutualism:
i. Lichens:
Lichens are excellent example of mutualism.
They are the association of specific fungi and certain genus of algae. In lichen, fungal partner is called mycobiont and algal partner is called
II. Syntrophism:
It is an association in which the growth of one organism either depends on or improved by the substrate provided by another organism.
In syntrophism both organism in association gets benefits.
Compound A
Utilized by population 1
Compound B
Utilized by population 2
Compound C
utilized by both Population 1+2
Products
In this theoretical example of syntrophism, population 1 is able to utilize and metabolize compound A, forming compound B but cannot metabolize beyond compound B without co-operation of population 2. Population 2is unable to utilize compound A but it can metabolize compound B forming compound C. Then both population 1 and 2 are able to carry out metabolic reaction which leads to formation of end product that neither population could produce alone.
Examples of syntrophism:
i. Methanogenic ecosystem in sludge digester
Methane produced by methanogenic bacteria depends upon interspecies hydrogen transfer by other fermentative bacteria.
Anaerobic fermentative bacteria generate CO2 and H2 utilizing carbohydrates which is then utilized by methanogenic bacteria (Methanobacter) to produce methane.
ii. Lactobacillus arobinosus and Enterococcus faecalis:
In the minimal media, Lactobacillus arobinosus and Enterococcus faecalis are able to grow together but not alone.
The synergistic relationship between E. faecalis and L. arobinosus occurs in which E. faecalis require folic acid
CLASS 12th CHEMISTRY SOLID STATE ppt (Animated)
Description:
Dive into the fascinating realm of solid-state physics with our meticulously crafted online PowerPoint presentation. This immersive educational resource offers a comprehensive exploration of the fundamental concepts, theories, and applications within the realm of solid-state physics.
From crystalline structures to semiconductor devices, this presentation delves into the intricate principles governing the behavior of solids, providing clear explanations and illustrative examples to enhance understanding. Whether you're a student delving into the subject for the first time or a seasoned researcher seeking to deepen your knowledge, our presentation offers valuable insights and in-depth analyses to cater to various levels of expertise.
Key topics covered include:
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Band Theory: Explore the electronic band structure of solids and understand how it influences their conductive properties.
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Magnetic Properties: Investigate the magnetic behavior of solids, including ferromagnetism, antiferromagnetism, and ferrimagnetism.
Optical Properties: Examine the interaction of light with solids, including absorption, reflection, and transmission phenomena.
With visually engaging slides, informative content, and interactive elements, our online PowerPoint presentation serves as a valuable resource for students, educators, and enthusiasts alike, facilitating a deeper understanding of the captivating world of solid-state physics. Explore the intricacies of solid-state materials and unlock the secrets behind their remarkable properties with our comprehensive presentation.
在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
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6:个人职称评审加20分
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Direct Seeded Rice - Climate Smart Agriculture
Direct Seeded Rice - Climate Smart AgricultureInternational Food Policy Research Institute- South Asia Office
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Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
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Signatures of wave erosion in Titan’s coasts
The shorelines of Titan’s hydrocarbon seas trace flooded erosional landforms such as river valleys; however, it isunclear whether coastal erosion has subsequently altered these shorelines. Spacecraft observations and theo-retical models suggest that wind may cause waves to form on Titan’s seas, potentially driving coastal erosion,but the observational evidence of waves is indirect, and the processes affecting shoreline evolution on Titanremain unknown. No widely accepted framework exists for using shoreline morphology to quantitatively dis-cern coastal erosion mechanisms, even on Earth, where the dominant mechanisms are known. We combinelandscape evolution models with measurements of shoreline shape on Earth to characterize how differentcoastal erosion mechanisms affect shoreline morphology. Applying this framework to Titan, we find that theshorelines of Titan’s seas are most consistent with flooded landscapes that subsequently have been eroded bywaves, rather than a uniform erosional process or no coastal erosion, particularly if wave growth saturates atfetch lengths of tens of kilometers.
SDSS1335+0728: The awakening of a ∼ 106M⊙ black hole⋆
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InIndia-post-harvestlosses-unscientificstorage,insects,rodents,micro-organismsetc.,accountforabout10percentoftotalfoodgrains
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Directdamage
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Recent theoretical progress indicates that spacetime and gravity emerge together from the entanglement structure of an underlying microscopic theory. These ideas are best understood in Anti-de Sitter space, where they rely on the area law for entanglement entropy. The extension to de Sitter space requires taking into account the entropy and temperature associated with the cosmological horizon. Using insights from string theory, black hole physics and quantum information theory we argue that the positive dark energy leads to a thermal volume law contribution to the entropy that overtakes the area law precisely at the cosmological horizon. Due to the competition between area and volume law entanglement the microscopic de Sitter states do not thermalise at sub-Hubble scales: they exhibit memory effects in the form of an entropy displacement caused by matter. The emergent laws of gravity contain an additional ‘dark’ gravitational force describing the ‘elastic’ response due to the entropy displacement. We derive an estimate of the strength of this extra force in terms of the baryonic mass, Newton’s constant and the Hubble acceleration scale a0 = cH0, and provide evidence for the fact that this additional ‘dark gravity force’ explains the observed phenomena in galaxies and clusters currently attributed to dark matter.
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JAMES WEBB STUDY THE MASSIVE BLACK HOLE SEEDS
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Standing and travelling waves
- 1. Standing and Travelling Waves BY: STEVEN DANG
- 2. What is a travelling wave? Travelling waves are wave patterns that is seen travelling through a medium and is not confined to a given space along the medium. Standing wave: waves bounce back and forth when they reach the boundaries on either end Travelling wave: waves move in one direction and do not move back and forth as there is no boundary. (ex. Ocean waves)
- 3. As standing waves reflect, the reflected portion will interfere with the initial portion of the wave in a orderly fashion. This interference resembles a sine graph. Ocean waves are a little different, although the sine wave patterns in ocean particles interfere with one another, they do so in an unorderly fashion and causes irregular and non-repeating motions.
- 4. When a proper frequency is used, there are points in a standing wave where the wave seems to be standing still, those points are called nodes. Travelling waves have no nodes because there are no boundaries. node https://www.youtube.com/watch?v=no7ZPPq tZEg Video of standing wave on a string:
- 5. Thank You!