Before we start to understand How does the light we need to understand what light basically is.
What is Light?
light is made up of small packets of energy called a photon. These photons are produced when an atom is in an excited state. Mean whenever an atom gets some sort of energy in form of heat they excite and thus light produce. Like FIre!
How Does Light Travel
Now we come to our main topic of how does light travel. Obviously, for traveling, we need a medium. But that doesn't apply to the light. Light is a form of energy that doesn't need any sort of medium to travel from one place to another. Light can pass through vacuum too! Nothing can travel faster than light. Light travels with an extremely high speed of 300,000KM per sec.
How Does Shadow Create
Light travel in a straight line and thus called rays. When these rays made contact with an object they bounce back and those rays which do not pass through in a straight line this leaves a shadow behind!
Reverse Image or Mirror Effect
When we see ourselves in the mirror it looks fine, but when we raise our left hand in the mirror our duplicate raise it's right hand. It's because when the light made contact to the mirror it reflects back int the same angle it made contact. This is the reason we see a reverse image in the mirror.
The angle of Reflection=Angle of Incidence
Phenomena of Laser Light
In laser light, we see that red light can travel through long distances. Which is due to the dense population of an electron in the middle stage. Laser light has 3 stages, natural excited and middle stage. Energy is provided to the electron which jumps to the excited state and after that, it comes to the middle stage and remains there for quite a time which increases the density of light and thus we see a thick wave of red light passing.
Thank you for sparing some time in reading this article!
Hello,
Good info on light.
Do you have permission to use these photos?
You linked google search results for your images. Some may have copy right and original sources should be used. Copyright infringement is bad.
Please clean up your sources and do not just link imagine search engine results to avoid accusations of plagiarism.
I've searched it thoroughly. After checking all the copyrights than I've uploaded these pictures also I've shared their links too. These photos can be used by any person to make a point. I'll take care of it in the coming future and I'll try to post my own pictures! Thanks for your time to read my post :)
I tried to warn you nicely. You need to change your image source links.
Linking google image search results is NOT acceptable, especially when the copyright notice appears.
I am downvoting this post for unacceptably sourced images.
Please fix your sources to NOT use google search links and give proper credit.
I'll take care of it in the coming future and I'll try to post my own pictures! Thanks for your time to read my post. I've replied humbly if you've read it :) No worries for the downvote I'll change the credits!
Thank you for fixing. But there are still issues.
Image 1 source seems good
Image 2 source is clearly not original source
Image 3 source does not grant permission to use any images
You obviously need practice.
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