1) Diffraction is the phenomenon where waves bend around objects when passing through gaps or openings, spreading out on the other side. Francesco Grimaldi first observed and identified this phenomenon.
2) Originally, Newton proposed that light consisted of particles or "corpuscles" (particle theory). However, Huygens put forward the wave theory of light, proposing that light behaves as waves that require a medium, such as aether, to propagate through.
3) Key evidence for the wave theory was the observation of interference patterns produced by light, which cannot be explained by particles alone. This supported Huygens' theory over Newton's particle theory.
Maxwell equations and propagation in anisotropic mediaSolo Hermelin
Describes the propagation of electromagnetic waves in anisotropic electrical media.
Please send comments to solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com.
The presentation is not properly downloaded. Please go to my website and open it in the Optics Folder.
The term Diffraction has been defined by Sommerfield as any deviation of light rays from rectilinear paths which cannot be interpreted as reflection or refraction.
For comments please connect me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com. This presentation is in the Optics folder.
The Compton effect is the result of a high-energy photon colliding with a target, which releases loosely bound electrons from the outer shell of the atom or molecule .
Maxwell equations and propagation in anisotropic mediaSolo Hermelin
Describes the propagation of electromagnetic waves in anisotropic electrical media.
Please send comments to solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com.
The presentation is not properly downloaded. Please go to my website and open it in the Optics Folder.
The term Diffraction has been defined by Sommerfield as any deviation of light rays from rectilinear paths which cannot be interpreted as reflection or refraction.
For comments please connect me at solo.hermelin@gmail.com.
For more presentations on different subjects visit my website at http://www.solohermelin.com. This presentation is in the Optics folder.
The Compton effect is the result of a high-energy photon colliding with a target, which releases loosely bound electrons from the outer shell of the atom or molecule .
A detailed presentation on fraunhofer diffraction and also an introduction to the concept of diffraction.There is also a brief discussion on fresnel diffraction and the difference between former and the latter.
A detailed presentation on fraunhofer diffraction and also an introduction to the concept of diffraction.There is also a brief discussion on fresnel diffraction and the difference between former and the latter.
Para la física, una onda consiste en la propagación de una perturbación de alguna propiedad del espacio, por ejemplo, densidad, presión, campo eléctrico o campo magnético, implicando un transporte de energía sin transporte de materia.
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
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2. DIFFRACTION
INTRODUCTION:
Diffraction is the phenomenon that occurs when waves bend
around objects; specifically when passing through a gap and spreading
out at the end. Francesco Maria Grimaldi an Italian scientist was the
first to observe and identify this phenomenon.
7. According to particle nature of light that was presented by
Newton. Newton said that light is actually in the form of small
packets. Newton generally said particles to these small packets. And
the light are in the form of particles, and he named it corpuscles. And
corpuscles are also known as particles of light. Newton said that the
nature of light is corpuscular and the particles of light are travel in
the form of packets. This known as corpuscular theory.
8. After this a physics scientist HUYGEN’S comes and he presented
that the light are in the form of wave. It is not in the form of particles.
We have two forms in which object travel,
First one “The object travel in the form of wave” that is the theory of
HUYGEN’S,
Second one is that “The objects travel in the form of packets or
corpuscles” which is the theory of Newton.
10. Carpuscular theory which is the theory of newton that was rejected
because it includes some points that are wrong after sometime.
Huygens presented that the light travel in the form of waves.
According to the physicians whenever any wave moves, it required a
medium to travel from place to another.
Such as:
11. Water waves its medium is water because water waves travel on
water.
Sound waves its medium is Air, Solid and Liquid because sound
waves cannot move without these mediums
12. So when light presented in the form of waves so physicts said that
in universe all space around us their exist a medium that named as
“AETHER”.
In the Aether a light waves travel. Without this medium a light
wave cannot move.
13. In figure we showed light in the form of
waves.
Huygens presented his theory that light
can travel in the form of wave, Not in the
form of particles so for the support of
Huygens theory the best evidence is
interference phenomenon.
14. Interference of light:
“The process in which two or more light, or electromagnetic waves
of the same frequency combine to reinforce or cancel each other, the
amplitude of the resulting wave being equal to the sum of the
amplitudes of combining waves.”
Interference have two types :
15. Constructive interference:
When two waves meet in such a way that their crests line up
together, then it's called constructive interference. The resulting
wave has a higher amplitude.
Destructive interference:
when the crest of one wave meets the trough of another, and the
result is a lower total amplitude
16. The phenomenon of interference doesn’t occur in particles because it
is general property of wave.
Diffraction and interference are those properties which only occur in
waves.
When light observed interference phenomenon so from it is proved
that the light is actually in the form of waves , not in particles form. And
this experiment was done by THOMAS YOUNG . so THOMAS
YOUNG supported the HUYGEN’S THEORY.
17. Another scientist “MAXWELL” proved that the light is actually
the form Electromagnetic waves and speed of light is equal to the
speed of electromagnetic waves and it is denoted by “C”. and its value
is 3 x 10^8 m/s in the vaccum
And its speed is different in different medias.
18. So it is the theory that presented HUYGENS against NEWTON
that the light travels in the form waves , not in the form of particles
form
Huygens presented this theory and other scientists proof it that
the light are in the form of wave
19. LIGHT WAVE THEORY
Light can exhibit both a wave theory, and a particle theory at the same
time. Much of the time, light behaves like a wave. Light waves are also
called electromagnetic waves because they are made up of both electric
(E) and magnetic (H) fields. Electromagnetic fields oscillate perpendicular
to the direction of wave travel, and perpendicular to each other. Light
waves are known as transverse waves as they oscillate in the direction
traverse to the direction of wave travel.
20.
21. WAV E S H AV E T W O I M P O R T A N T C H A R A C T E R I S T I C S -
WAV E L E N G T H A N D F R E Q U E N C Y.
Wavelength:
This is the distance between peaks of a wave. Wavelengths are measured in
units of length - meters, When dealing with light, wavelengths are in the order
of nanometres (1 x 10-9
)
Frequency:
This is the number of peaks that will travel past a point in one second.
Frequency is measured in cycles per second. The term given to this is Hertz
(Hz) named after the 19th century discoverer of radio waves - Heinrich Hertz.
1 Hz = 1 cycle per second
22. HUYGENS PRINCIPLE
Huygens’s Principle states that every point on a wavefront is a
source of wavelets.
These wavelets spread out in the forward direction, at the same
speed as the source wave. The new wavefront is a line tangent to all
of the wavelets.