The document provides an introduction to the physics of mirrors. It discusses how flat mirrors form virtual images that are upright, the same size, and located behind the mirror. Curved mirrors like concave mirrors bring parallel rays of light to a focus at a focal point a given focal length from the mirror's center, while convex mirrors cause parallel rays to appear to diverge from a virtual focal point behind the mirror.
Reflection of light
Spherical mirrors
Images formation by spherical mirrors
Representation of images formed by spherical mirrors using ray diagrams
Mirror formula and magnification
Consider a glass with a hollow sphere and a reflecting surface. This reflecting hollow surface of sphere of which either sides are polished, forms the spherical mirrors. Spherical Mirrors are of two types: (a) Concave Mirror Copy the link given below and paste it in new browser window to get more information on Reflection of Light by Spherical Mirrors www.askiitians.com/iit-jee-ray-optics/reflection-of-light-by-spherical-mirrors/
Reflection of light
Spherical mirrors
Images formation by spherical mirrors
Representation of images formed by spherical mirrors using ray diagrams
Mirror formula and magnification
Consider a glass with a hollow sphere and a reflecting surface. This reflecting hollow surface of sphere of which either sides are polished, forms the spherical mirrors. Spherical Mirrors are of two types: (a) Concave Mirror Copy the link given below and paste it in new browser window to get more information on Reflection of Light by Spherical Mirrors www.askiitians.com/iit-jee-ray-optics/reflection-of-light-by-spherical-mirrors/
reflection of light by plane and spherical mirror use of spherical mirror and use of mirror formula .the presentation is very useful for class X students who studying physics
Mirror - Physics by: Rey San Andrew RimandoRey Rimando
In this PowerPoint Presentation, you will find related topics with explanation like the Three Types of Mirror; it's characteristics and functions. Attached also is the video presentation used under the hyperlink(UNDERLINED WORDS). I'm hoping this will help a lot of students. Thanks! -Rey
reflection of light by plane and spherical mirror use of spherical mirror and use of mirror formula .the presentation is very useful for class X students who studying physics
Mirror - Physics by: Rey San Andrew RimandoRey Rimando
In this PowerPoint Presentation, you will find related topics with explanation like the Three Types of Mirror; it's characteristics and functions. Attached also is the video presentation used under the hyperlink(UNDERLINED WORDS). I'm hoping this will help a lot of students. Thanks! -Rey
27 января 2014 г. сотрудники Центральной научной библиотеки им. Я. Коласа Национальной академии наук Беларуси Мария Бовкунович, м.н.с. отдела научного формирования фондов, и Инна Юрик, зав. отделом маркетинговых исследований, провели обучающий семинар для преподавателей юридического факультета Белорусского государственного университета по анализу результатов научной деятельности. На семинаре были подробно рассмотрены библиометрические методы оценки результативности деятельности исследователей, научных коллективов, научных организаций, высших учебных заведений; раскрыт механизм расчета библиометрических показателей; акцентировано внимание на особенностях и принципах функционирования базы данных Scopus; представлены рейтинги научных учреждений НАН Беларуси, высших учебных заведений Беларуси, а также других научных учреждений и организаций республики, публикации которых отражены в базе данных SCOPUS; даны рекомендации о том, в каких наиболее авторитетных периодических изданиях можно публиковать результаты научных исследований (по Web of Knowledge) по юриспруденции.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
5. Huygens’ principle Every point on a wavefront acts as a source of tiny “wavelets” that move forward. “ wavelet” wavefront Direction of propagation
6. Law of Reflection Incident wave Reflected wave Describe light as “rays” along direction of propagation of EM wave i r i = r Angle of incidence = Angle of reflection
13. ACT: Flat Mirrors to see feet, bottom of mirror must extend at least as low as midpoint between eyes and feet—independent on how far you are from the mirror.
14.
15. Curved mirrors A Spherical Mirror: section of a sphere. C = Center of curvature In front of concave mirror, behind convex mirror. R principal axis light ray • Concave mirror R C Convex mirror principal axis light ray R C •
16. Preflight 16.2 An organic chemistry student accidentally drops a glass marble into a silver nitrate mirroring solution, making the outside of the marble reflective. What kind of mirror is this? (1) concave (2) convex (3) flat
17. Concave Mirror Principal Axis Rays parallel to principal axis and near the principal axis (“paraxial rays”) all reflect so they pass through the “Focus” (F). R The distance from F to the center of the mirror is called the “Focal Length” (f). Angle of incidence = angle of reflection. Thus rays are bent towards the principal axis. Focus f=R/2
18. Preflight 16.4, 16.5 What kind of spherical mirror can be used to start a fire? concave convex How far from the match to be ignited should the mirror be held? farther than the focal length closer than the focal length at the focal length
19. Concave Mirror Principal Axis Rays traveling through focus before hitting mirror are reflected parallel to Principal Axis . Rays traveling parallel to Principal Axis before hitting mirror are reflected through focus F F
20. Convex Mirror Principal Axis Focus Rays parallel to principal axis and near the principal axis (“paraxial rays”) all reflect so they appear to originate from the “Focus” (F). R f=-R/2 The distance from F to the center of the mirror is called the “Focal Length” (f). Rays are bent away from the principal axis.
21.
Editor's Notes
1
Here can do cool light with ½ silvered mirror demo (1041)
Bottom of mirror must be lower than halfway between eyes and feet to see feet. Demo 1095, ask for volunteer
Demo 435
demo: 1131
still true that angle of incidence=angle of reflection
![Phys 102 recent lectures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Light as a wave Light as a ray](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)