Prism & dispersion of light

  Рет қаралды 27,665

Khan Academy India - English

Khan Academy India - English

5 жыл бұрын

By doing an experiment let's explore what prisms are and what happens to white light as it passes through a prism.
Created by Mahesh Shenoy

Пікірлер: 37
@dhananjaydixit9280
@dhananjaydixit9280 5 жыл бұрын
Best vid on dispersion.. It deserves atleast a M views, why these type of vids never come in my recommendation?!
@veerabhadraprasadr9886
@veerabhadraprasadr9886 4 жыл бұрын
Because KZfaq favours videos which can earn more money by millions and millions of views. To be honest. I learnt so much in this video. I loved it.
@riddhimasingh7743
@riddhimasingh7743 3 жыл бұрын
That’s cuz you might not watch their vids 🤦‍♀️🤦‍♀️😑😑😑😑
@ugotthiss
@ugotthiss 2 жыл бұрын
Finallyyy!! after going through so many vids and getting no proper explanation I am highly grateful that I found this one and clearly understood everything😌 This is the best video out here, deserves a million views! THANK YOU SO MUCH SIR!🙏🙏
@sanskargupta3765
@sanskargupta3765 3 жыл бұрын
absolutely valid reason for the glass slab's emergent ray to be white rather a spectrum. i have researched a lot about this on all websites but they all give reason which dont seem valid and reasonable but you made it Mahesh sir.
@shivampandey2545
@shivampandey2545 3 жыл бұрын
Explained very clearly (thanks a lot)
@Hino_55
@Hino_55 4 жыл бұрын
Excellent explanation Sir Mahesh!
@microhoarray
@microhoarray 3 жыл бұрын
This is an amazing explanation! Teachers never mentions that thank you sir 🙏
@shubhanksingh3762
@shubhanksingh3762 2 жыл бұрын
This is education which We should get.❤️
@mostafamohammed4853
@mostafamohammed4853 3 жыл бұрын
This is the best video explaining prisms thanks it really helped ❤️
@simarcheema3373
@simarcheema3373 5 жыл бұрын
stuDYING for pre boards like
@aakankshamalik5190
@aakankshamalik5190 2 жыл бұрын
👏👏👏👏 awesome
@payalmehta3782
@payalmehta3782 Жыл бұрын
You are best teacher ever
@Akmal.Thaha.
@Akmal.Thaha. Жыл бұрын
Thank u Awesome explanation
@keshabdeb4767
@keshabdeb4767 2 жыл бұрын
Just wow 😲😲
@Hemanthdev10
@Hemanthdev10 10 ай бұрын
Great video
@iniyaa6255
@iniyaa6255 4 жыл бұрын
Awesome explanation sir. I finally understood the concept clearly without just memorising the lines in the textbook. This KZfaq channel deserves way more subscribers than this.
@shriyadeshpande493
@shriyadeshpande493 Жыл бұрын
Thank you
@devendra2003
@devendra2003 2 жыл бұрын
Masterpiece
@RuJstudies
@RuJstudies 2 жыл бұрын
This has made my 10th standard very useful. I am truly grateful for this and the other videos... I really like watching these videos because we actually learn why things happen, we don’t need to by heart reactions and laws without understanding them :)
@kirankumar6557
@kirankumar6557 2 жыл бұрын
Thank you so much...
@namraaah271
@namraaah271 3 жыл бұрын
Thank uuu
@The_sazia
@The_sazia 4 жыл бұрын
Brilliant
@prayanshsharma1832
@prayanshsharma1832 9 ай бұрын
Thank you so much ❤
@shubham7148
@shubham7148 4 жыл бұрын
Sir why always ray passes from downward side why not pass it from upper side. Please explain it 🙏🙏🙏
@secularsanity7706
@secularsanity7706 5 жыл бұрын
Why is the spectrum reversed when viewing a light source through a prism? I can see in your video that you show them overlapping at one point, which might explain it, but whether or not they overlap when exiting the prism, or when we trace it back through the prism, why is it that only the spectrum is inverted and not the image itself?
@KhanAcademyIndiaEnglish
@KhanAcademyIndiaEnglish 5 жыл бұрын
Great question. Since the blue light bends more it appears to have originated from higher in the sky. (If you trace it back it will make sense). And hence when you see it, you see blue at the top and red at the bottom
@secularsanity7706
@secularsanity7706 5 жыл бұрын
@@KhanAcademyIndiaEnglish Yes, but why is it that only the spectrum is inverted and not the image itself?
@KhanAcademyIndiaEnglish
@KhanAcademyIndiaEnglish 5 жыл бұрын
@@secularsanity7706 The spectrum is not inverted. The rays of light, from the things higher in the sky, will always be more oblique compared to things lower in the sky. The rays of light, from things in front of you, would be more parallel to the ground. (even without any prism). [I may not be using the best choice of words, so feel free to follow up with more questions]
@secularsanity7706
@secularsanity7706 5 жыл бұрын
@@KhanAcademyIndiaEnglish No, I’m sorry, but that doesn’t make any sense to me. Can you make a ray tracing diagram through a prism? Obviously the light source or object is going to be displaced towards the apex (see image in link below), but can you show me exactly why the red is deflected toward the base and why the blue is deflected towards the apex? Would you be willing to make another video that explains it? medical-dictionary.thefreedictionary.com/prism
@levidastampede2296
@levidastampede2296 5 жыл бұрын
I think its because of the triangle being right angled.
@bhumika9a335
@bhumika9a335 2 жыл бұрын
Sir, what is the reason why red bends the least??
@mallutravelersupport7240
@mallutravelersupport7240 3 жыл бұрын
U deserves 0 views Go back Come back !!???
@mallutravelersupport7240
@mallutravelersupport7240 3 жыл бұрын
1 like please
@ishika6802
@ishika6802 3 жыл бұрын
Atleast learn English bro😂
@medhavikasini
@medhavikasini 3 жыл бұрын
Bro go out and see some grass bro
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