Light is electromagnetic radiation that travels at about 300,000 km/s. It can be emitted from luminous objects like stars or reflected from illuminated objects like the moon. Light carries energy and information, travels in straight lines, and can be reflected, refracted, or absorbed when interacting with objects. The human eye detects light via photoreceptors in the retina that send signals to the brain, allowing us to see color.
POLARIZATION
Polarization is a property of waves that can oscillate with more than one orientation.
Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves.
Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.
Polarization of Light and its Application (healthkura.com)Bikash Sapkota
Download link ❤❤https://healthkura.com/eye-ppt/29/❤❤
Dear viewers Check Out my other piece of works at ❤❤❤ https://healthkura.com/eye-ppt/ ❤❤❤
polarization of light & its application.
PRESENTATION LAYOUT
Concept of Polarization
Types of Polarization
Methods of achieving Polarization
Applications of Polarization
POLARIZATION
Transforming unpolarized light into polarized light
Restriction of electric field vector E in a particular plane so that vibration occurs in a single plane
Characteristic of transverse wave
Longitudinal waves can’t be polarized; direction of their oscillation is along the direction of propagation.............
For Further Reading
•Optics by Tunnacliffe
•Optics and Refraction by A.K. Khurana
•Principle of Physics, Ayam Publication
•Internet
POLARIZATION
Polarization is a property of waves that can oscillate with more than one orientation.
Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves.
Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.
Polarization of Light and its Application (healthkura.com)Bikash Sapkota
Download link ❤❤https://healthkura.com/eye-ppt/29/❤❤
Dear viewers Check Out my other piece of works at ❤❤❤ https://healthkura.com/eye-ppt/ ❤❤❤
polarization of light & its application.
PRESENTATION LAYOUT
Concept of Polarization
Types of Polarization
Methods of achieving Polarization
Applications of Polarization
POLARIZATION
Transforming unpolarized light into polarized light
Restriction of electric field vector E in a particular plane so that vibration occurs in a single plane
Characteristic of transverse wave
Longitudinal waves can’t be polarized; direction of their oscillation is along the direction of propagation.............
For Further Reading
•Optics by Tunnacliffe
•Optics and Refraction by A.K. Khurana
•Principle of Physics, Ayam Publication
•Internet
Light is a transverse, electromagnetic wave that can be seen by humans. The wave nature of light was first illustrated through experiments on diffraction and interference. Like all electromagnetic waves, light can travel through a vacuum. The transverse nature of light can be demonstrated through polarization.
Light is a transverse, electromagnetic wave that can be seen by humans. The wave nature of light was first illustrated through experiments on diffraction and interference. Like all electromagnetic waves, light can travel through a vacuum. The transverse nature of light can be demonstrated through polarization.
Most of the times this study confused me...so, i just put some important points in one place to easily keep them in mind..hope it will help other students as well..and inform me, if a reader find anything new to improve it further.
How To Determine The Colour Of Transition Metal ComplexesDenison Dwarkah
Many times students ask the question as to how do we figure out what colour a complex will be. This is a basic starting point and applies to the CAPE Chemistry Syllabus, Module 3 Section 5.
This presentation gives an introduction to mechanical vibration or Theory of Vibration for BE courses. Presentation is prepared as per the syllabus of VTU.For any suggestions and criticisms please mail to: hareeshang@gmail.com or visit:ww.hareeshang.wikifoundry.com.
Thanks for watching this presentation.
Hareesha N G
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
2. Something that makes vision possible
electromagnetic radiation of any wavelength that
travels in a vacuum with a speed of about 186,281 miles
(300,000 kilometers) per second
Light travels almost a million times faster than sound.
3. Luminous Objects — emit light from within
Illuminated Objects — reflect externally supplied light
The starsThe sun
The moon Electric lights
Fires and flames
4. Light travels almost unimaginably fast and far.
Light carries energy and information.
Light bounces and bends when it comes in contact with
objects.
Light has color.
Light has different intensities, it can be bright or dim.
5. Light is a form of energy that travels.
The intensity of light is the amount of energy per second
falling on a surface.
Most light sources distribute their light equally in all
directions, making a spherical pattern.
Because light spreads out in a sphere, the intensity
decreases the farther you get from the source.
The fiber-optic networks you read about are pipelines
for information carried by light.
6. The intensity of light from a small source follows an
inverse square law because its intensity diminishes as
the square of the distance.
7. air
glass
Refraction is the bending of light
When the light passes from one
medium to another.
Bending or change in
direction of a light beam
that occurs at the surface
of a substance or object.
9. The angle of
incidence equals
the angle of
reflection.
The incident ray
strikes the mirror.
The reflected ray
bounces off.
10. Light rays may bend as they
cross a boundary from one
material to another, like from
air to water.
This bending of light rays is
known as refraction.
The light rays from the straw
are refracted (or bent) when
they cross from water back
into air before reaching your
eyes.
11.
12. sin i is directly proportional to sin r.
sin i
sin r
O
Relation between angle of incidence and angle of refraction
i = angle of incidence
r = angle of refraction
straight line passing through the origin
13. off a smooth surface (i.e. mirror)
off a rough surface (i.e. white paper)
Seculars Reflection
Diffuse Reflection
14. Light rays travel in straight lines from the light source.
When it hits an opaque object, some light is absorbed and
the rest reflects off.
If the object is transparent, light rays pass through it
easily.
If the object is translucent, some light can pass through,
but the rest of the light will be reflected.
light
source
15. When all the colors of the rainbow are combined, we do
not see any particular color.
We see light without any color.
We call this combination of all the colors of light "white
light".
16.
17. We can think of different colors
of light like balls with different
kinetic energies.
Blue light has a higher energy
than green light, like the balls
that make it into the top window.
Red light has the lowest
energy, like the balls that can
only make it to the lowest
window.
18. When white light passes through a glass prism, blue is
bent more than red.
Colors between blue and red are bent proportional to
their position in the spectrum.
19. The variation in refractive
index with color is called
dispersion.
A rainbow is an example of
dispersion in nature.
Tiny rain droplets act as
prisms separating the
colors in the white light
rays from the sun.
20. The retina in the back of the eye
contains photoreceptors.
These receptors release chemical
signals.
Chemical signals travel to the brain along
the optic nerve.
optic nerve
Which chemical signal gets sent
depends on how much energy the light
has.
If the brain gets a signal from ONLY
green cones, we see green.
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