Step 1. Install Enhancer for RUclips extension (supported by Chrome and Firefox). Step 2. In the small white toolbar at the bottom of the RUclips video page, set the speed to 3x. Step 3. Enjoy a smooth, uninterrupted firehose of information.
Hey Organic Chemistry Tutor, can you do a video on polarisation by double refraction? The one with the O and E rays. Thanks, I appreciate your videos, it helped me a lot.
1:11 this is the confusing part. The original unpolarized light going through a single polarizer loses half its intensity. I can't find this anywhere in my textbook.
btw i found this derived in another video. you essentially integrate the right side of Malus's Law with respect to dθ over the interval from 0 to π (because a polarizer's axis is rotated through its center, so rotating it 2π only undoes the polarization effect). Then you take the average of this (multiply the integral by 1/(π -0) ). The result is 1/2 Io.
Another valid explanation could be that if light is unpolarised, we assume it to be symmetrically originating from a point source. We then resolve this total intensity of light along x and y axis which is again symmetrical by assumption. Now the first Polaroid filter will only allow one component of the light to pass through, either the component along x or along y. Again, as these components are symmetrically distributed we take I/2 to be the amount. After light passes through this, if is no longer symmetrical in nature. Therefore we use malus law to find intensity through the next consecutive filters
How are double slit test results changed when using polarized light either aligned with the slits or perpendicular to them, as well as with helical? Thx
Dang Nguyen Vinh Hai when unpolarized light is heading into the polarizer it doesn’t matter what the angle of the polarizer is, the intensity is halved
~16:00 question 5, this is essentially the question that bothered me in OpenStax, Vol 3 Ch. 1 problem #69, whoever writes these questions never took an English course, I hate physics word problems 😂, and the Vaia website (free solution) gets the correct answer *only* because it assumes the first polarizer didn't polarize the light!! wtf. Sooo confusing. At least here we see the final result is 1/8 the original light, not 25% like the book wants you to believe. wth.
Can someone explain how Malus' Law was derived? I've been searching other videos in RUclips but there is still no clear explanation. Thanks in advance!
Still confused why in one of the first few problems, 90 degrees was used and on the other hand, in one of the problems after that is 90 - 45 degrees was used
Look at the problem. The angle is 90 degree in respect to the first polarizer, but the value of the angle is in relationship to what the angle of the polarized light produced by the 2nd polarizer is. The second polarizer produces the light at an angle of 45, the third polarizer is at an angle of 90, if you subtract the two you get 45 degrees.
Intensity could be increase or decrease to maximize or minimize by control the Miu (u) and epsilon (e). e*u cos theta= 1 the Miu is to allow density of magnetic field concentration while if more magnetic opposite to electric field will reduce current and light and other way by reverse the value with more light allow but depending on angle of magnetic field and angle of epsilon so if concentrate earth magnetic in direction at angle less than 90 degree and close to zero light will be less. Theta is the angle of the magnetic field and the electric field or light if it was artifcicial light. In case of sun light the denser the magnetic field and sun interacting in mutual exclusively because if in lease magnetic field in certain city mean to degrease in other region and also the angle of sun orbit and earth rotation make different effect and need to measure carefully before apply to reduce unexpect deadly consequences to neighboring city
Final Exams and Video Playlists: www.video-tutor.net/
Every time I'm confused I come here and come out knowing how to apply this stuff. Thank you so much, you're the infallible crutch for knowledge, haha.
I know its wilddd hes such a good teacher
We've not even begun our semester and I'm almost halfway through the whole syllabus. Thanks man 😊
i wish i was like you
wish you studied one month ago
@@zahraistired hahaha this cracked me up lol
nerd, nah all love man I wish I had your discipline
Likewise!
you keep saving me, time and time again.
You're the best teacher honestly!
me trying to watch a 37 min vid in 10 min
Same bro
Same🙏
There has never been a more accurate comment
Step 1. Install Enhancer for RUclips extension (supported by Chrome and Firefox).
Step 2. In the small white toolbar at the bottom of the RUclips video page, set the speed to 3x.
Step 3. Enjoy a smooth, uninterrupted firehose of information.
Right before ur exam? :P
Words cannot express my gratitude, I am truly thankful.
you guy, you are a G, your videos are single handedly gonna make me pass IB. cheers!!
me too lmao
same guys
The best professor that i meet
Thanks for making me one step smarter!
thanks bro you'll really helped a brother, i'm gonna get an A+
YOU SAVED MY GRADES
best teacher ever. may god bless you sir
Thank you so much. I am now able to solve exercises for polarized light without help.
Woaw thanks much for your help. Everything is always simplified with you. We will make effort for you having many views as possible
You teach physics well. Thank you so much
Bro You have always been my life savor.
Thank you you are the best tutor ever.
Thanks a lot sir for such a large number of videos with clear and simple explanation 🙂. I am very thankful to you sir for it...
One of the most complicated topics wave optics explained so nicely 🥰🥰🥰
You deserve moreeeeeee views..... i will share this........ to many people 🙂🙂😊😊😊👌🏻👍🏼🖖🤘✌🏻🤘
Thanku from India brother
Thank you for explaining the concept in the simplest way thank yoouuu
Very nice explained 👍👍👍
Thanks so much ma dear teacher I was fearing this topic of optics but you made me to see it very very easy as person drinking water 😂😂
Super motivated . On my way to A-D
Can't join the patron but I like all your videos and I am subbed so I hope that helps!
Thank you SO MUCH for this video!!!!!
Thank u soo much sirr for u r unconditional help thank u soon muchhhh
you are gifted thanks a lot
Thank u gentleman...u r an angel😉
Hey Organic Chemistry Tutor, can you do a video on polarisation by double refraction? The one with the O and E rays. Thanks, I appreciate your videos, it helped me a lot.
Yes!
thanks man, cleared my doubt.
1:11 this is the confusing part. The original unpolarized light going through a single polarizer loses half its intensity. I can't find this anywhere in my textbook.
btw i found this derived in another video. you essentially integrate the right side of Malus's Law with respect to dθ over the interval from 0 to π (because a polarizer's axis is rotated through its center, so rotating it 2π only undoes the polarization effect). Then you take the average of this (multiply the integral by 1/(π -0) ). The result is 1/2 Io.
Another valid explanation could be that if light is unpolarised, we assume it to be symmetrically originating from a point source. We then resolve this total intensity of light along x and y axis which is again symmetrical by assumption. Now the first Polaroid filter will only allow one component of the light to pass through, either the component along x or along y. Again, as these components are symmetrically distributed we take I/2 to be the amount. After light passes through this, if is no longer symmetrical in nature. Therefore we use malus law to find intensity through the next consecutive filters
excellent concept building!
This video is a godsend thanks!
for sure
thanks a lot!
Thank you so much, Sir ❤
Thank you buddy 😊
kindly do a video where you explaining polarization of light before the problems
Thank you sir
Dude you are amazing
Thanks
How are double slit test results changed when using polarized light either aligned with the slits or perpendicular to them, as well as with helical? Thx
16:15 was very useful
Thank you for the video! Just wondering why the light intensity through the first filter was reduced to 1/2 I0? Thanks!
Dang Nguyen Vinh Hai when unpolarized light is heading into the polarizer it doesn’t matter what the angle of the polarizer is, the intensity is halved
@@wzac1234 thank you!
Great video, so helpfulllllll
🌹🌹🌹Thank you so much sir for that video 🌹🌹🌹🍧🍧👍👍👍👍👍
THANK YOUUUUUU
Thanks Sir
13:03 Qn)5
how cos 45 is sq rt 2/2
please make videos on jee topics
pkmkb
Watching this 10 minutes before my test 📐🎀
Machine and automation seems to save at first but if not train people in time the break down in society create unimaginable cost beyond repair
why did I specifically become half I(0) ?
~16:00 question 5, this is essentially the question that bothered me in OpenStax, Vol 3 Ch. 1 problem #69, whoever writes these questions never took an English course, I hate physics word problems 😂, and the Vaia website (free solution) gets the correct answer *only* because it assumes the first polarizer didn't polarize the light!! wtf. Sooo confusing. At least here we see the final result is 1/8 the original light, not 25% like the book wants you to believe. wth.
Some problem I see a lot of professors make: put a bunch of equations up and then delete them one second later.
Can someone explain how Malus' Law was derived? I've been searching other videos in RUclips but there is still no clear explanation. Thanks in advance!
no utubeuasdf ofor that soishit
How do you change the degrees into a square root number in question1 ?
look at a unit circle
In 6 why was the first thita not minus 21 degree?
This is fucking gold.
God bless you
tysm
why is the A3 theta is 15?
Can anyone tell me why I1 is half of Io?
Did you make it easier than it should be, or did my professor make it harder than it should be?
What if the light coming through is polarized??
could you make a video on interference and diffraction of light?
He already has them on this channel
Upload more and more videos,
Still confused why in one of the first few problems, 90 degrees was used and on the other hand, in one of the problems after that is 90 - 45 degrees was used
Look at the problem. The angle is 90 degree in respect to the first polarizer, but the value of the angle is in relationship to what the angle of the polarized light produced by the 2nd polarizer is. The second polarizer produces the light at an angle of 45, the third polarizer is at an angle of 90, if you subtract the two you get 45 degrees.
13:40
ur a legeeeeeeeeeeeeeeend
me when he says go ahead and try...⏩⏩😂
Cool
watched
:')) tysm
Seems easy
I owe my degree to you
Wow
Intensity could be increase or decrease to maximize or minimize by control the Miu (u) and epsilon (e). e*u cos theta= 1 the Miu is to allow density of magnetic field concentration while if more magnetic opposite to electric field will reduce current and light and other way by reverse the value with more light allow but depending on angle of magnetic field and angle of epsilon so if concentrate earth magnetic in direction at angle less than 90 degree and close to zero light will be less. Theta is the angle of the magnetic field and the electric field or light if it was artifcicial light. In case of sun light the denser the magnetic field and sun interacting in mutual exclusively because if in lease magnetic field in certain city mean to degrease in other region and also the angle of sun orbit and earth rotation make different effect and need to measure carefully before apply to reduce unexpect deadly consequences to neighboring city
How the fuck do u put square on cosine godamnnitttt
(cos(θ))² 🧠