Wien's Displacement Law - A Level Physics

[@douglasstrother6584]

Planck's approach was to analyze the entropy of blackbody radiation as a function of energy. To make both high-frequency and low-frequency data consistent with the Second Law of Thermodynamics, he included an additional "guess" term proportional to the frequency. Planck's application of Boltzmann's Statistical Mechanics led to his conclusion that the material of the walls emit and absorb radiation in discrete quanta. A paper titled "Planck’s Route to the Black Body Radiation Formula and Quantization" by Michael Fowler (7/25/08) gives a nice discussion.

[@imfoive3734]

Great explanation and the animation was so cool!!!! P.s. the green light sun concept kinda blowed me off!! Thank you so much for this amazing video!

[@KingTubeAR]

thank god our eyes can't see the sun green the sky would look depressing as fuck

[@ryuoni1966]

cleared my doubt instantly !!

[@sevanthishekar4379]

Can anyone explain this any better?? Definitely not! It was perfectly explained. Thank You :)

[@hosoiarchives4858]

I can explain it way better

[@ohm7163]

S

[@artisticnoob5003]

OMG you are so underrated!! Thank you sm❤ this was really helpful

[@SurendraRajkumar-c2g]

Simple and crystal Clear.. cheers

[@ryneshaking8988]

Really beautiful explanation!!!! Thanks to you I'm a little more confident for my exam.

[@vt.physics]

good luck on your exam!

[@devanshtiwari2764]

Finally, I got it😌

[@msmventures799]

Thank yoooooouuuuuuu I finally understood it!! Well explained 💗

[@prathameshprafulhole2662]

This was literally the best explanation! Thankyou so much!

[@yogita9448]

🔥🔥🔥 It was awesome broo......keep it up❤️ 🔥🔥🔥

[@rebelyt203]

Bro😂🤦

[@kaushikraj7155]

Excellent explanation

[@chiragpradhan3581]

Absolutely Brilliant ✨

[@vt.physics]

thank you!

[@satishmhatre2943]

Such a great video!! Also what could be the explanation behind the yellowish tint we always see of the sun 3:23 ?

[@vt.physics]

A star emits a range of wavelengths in its spectrum but it peaks at one particular wavelength. So a star might appear more yellow if the peak intensity is in the yellow visible light region.

[@satishmhatre2943]

@@vt.physics but doesn't it peak near the green region?

[@vt.physics]

@@satishmhatre2943 yep, you're right. It peaks around the green region, so it emits the most green light. But if you watch the end of the video, it explains how our eyes favour certain colours. And another factor that comes into play is the earth's atmosphere/climate. The amount of scattering differs depending on the wavelength. The atmosphere tends to scatter blue light more. So... White light (combination of all visible lights) minus blue light gives predominantly yellow.

[@shifarahim5456]

best explanation out of all and in th shoertest time !! Good work

[@unknown-sp8mv]

Cool explaination 👍

[@anvayaiyer5614]

Lit! Fire! Dank! 🔥🔥🔥 Actually lemme just change the colour of that fire to blue...mmm... No emoji to match but you get the point... Teehee!!!

[@vt.physics]

😂 we can blueshift the flames!

[@anvayaiyer5614]

@@vt.physics lol! Clever! 😂

[@aaronramirez493]

This video helped me so much! sending this to my classmates.

[@hoppybutter1875]

dammmnnn youre underappreciated amazing!

[@aamirkhan3838]

Very excellent explained 😃

[@Shonade_Malik]

Thanks for this! However, I was wondering about how exactly Wien's constant came to be. Is there any video you could possibly recommend me on?

[@saumyaraj3689]

So quick and brief

[@lekhatishbedse2275]

Perfection on its peak , for a particular video ...VT physics law 🥲♥️

[@carlosraya6881]

Helped a lot, thank you so much!

[@JoyinQuark]

Brief and clear... Thanku so much ma'am.

[@humasluni-itchan1366]

Woaah ! What an explination , Love it

[@MohammedAli-xr6fb]

Tomorrow is my exam and this helped a lot in short time.. Big up

[@MohdHamzaKhan-fq6th]

Such a wonderfull explanation!! Thank you so much mam.

[@nadiya9851]

Wow crisp explanation...

[@charlesbrightman4237]

Consider the following: "IF" temperature dictates whether a star is red or blue shifted, then how could 'red shift observations of stars' ONLY be concluded as 'space' itself is expanding? And what exactly is 'space' that it can expand?

[@aditya-locked]

Thank you for making this! Me likey

[@aboobakarmohammed1242]

Tysmmmmm! I couldn't understand this with my tb

[@kamzzaa7265]

Wow what an explanation!! :)

[@vipra7280]

Very helpful,understood the concept.

[@aesthetepisces5206]

loved the explanation .. thanks 😊

[@sumeraidrees9014]

Thank god I came across this....very well explained 😍🥰

[@EeshwarSivareddy]

this is the best 👌👌👌👌👌👌👌👌

[@houmantaherian7502]

it was great , I have biophysics exam , it helped me understand the whole material , thank you so much !!!

[@ayushchoubey635]

Nicely explained , thanks

[@Iamdafish]

Dude my phy teacher cant explain it this well.

[@saadhv6597]

Wonderful work.... Thanks a ton♥️

[@wern531]

Thank you for the explanation.

[@vishakhamahajan4601]

Great explanation....

[@angelinmary9291]

I finally got it !!!.Thanksss also are you an astrophysicist?

[@vt.physics]

my degree was in pure physics but studied a few astro modules at university

[@harivigneshumasankar3050]

Really good explanation 👍👍

[@RithvikGM]

Amazing explanation ❤

[@greg5992]

Nice

[@yuki002x]

what is the wavelength of bluelight??????

[@taghy91]

great explanation thanks al lot.

[@AyuDarshan]

Dude u make awesome content why don't u have the ruby play button u make concpets seem simple using just the iPad and ipencil bravo 🤗🤗🤗😊😊

[@vt.physics]

Thanks dude for your support! Glad you like my vids. Play Button seems like a long way... but I'm working at it!

[@werallgnnadieintheend]

Did you just say that the sun was green?!

[@riristudio6440]

Yeah but there is the atmosphere between the sun and so you can't really see it.

[@sujalparadhi3323]

Sun is white

[@yimenici]

Thank you very much for this beautiful and clear explanation.. I kindly want to ask about that mathematical process, when I calculate it i found the result as 4.99 x 10^-7

[@ternak001]

How hot is the sun? Yellow

[@NeelamSingh.991]

What software is this???

[@kansuerdem2799]

Dear Professor, Max Planck constant is the smallest unit in nature. how can it be that h/2pi is even be smaller?

[@vt.physics]

Planck's constant is, indeed, the smallest constant used in physics, which is reflective of the quantum scale. However, it is just a scale and not a physical quantity. Hope that clarifies it.

[@kansuerdem2799]

it's a a beautiful explanation. thank you Professor.

[@ayushmaan2657]

This was soo helpful

[@redsalt69]

Mam but if colours shifts towards left when temperature is increased . Then why is the rod appearing red when heated , it must be appearing in some other colour like blue or indigo because of high temps ?

[@vt.physics]

You're completely correct. When the rod is heated to a higher temperature, it will appear more blue. There's also the saying that something glows white-hot when it radiates the entire visible light spectrum.

[@redsalt69]

@@vt.physics but mam if an iron rod is heated to high temperatures and turns white in colour, why does such a big radiating structure like the appear to be green in colour? Is there any other factor affecting the max wavelength apart from temperature?

[@patrickhorton4596]

@@redsalt69 peak wavelength isn't quite the same thing as the color we see. What we see is a combination of the wavelengths of light being emitted (or reflected) by an object AND how our human eyes work. The "cones" in our eyes are not sensitive to all wavelengths of light, so something putting out a lot of light in a wavelength we can't see may not appear to glow at all (for example, infrared or ultraviolet).

[@joskokvesic7138]

Thank you

[@redvenom8822]

Good video :)

[@hosoiarchives4858]

How do you define intensity

[@vt.physics]

Power per unit area

[@hosoiarchives4858]

@@vt.physics what does that mean in layman’s terms

[@vt.physics]

@@hosoiarchives4858 you can think of it as the amount of energy that lands on a certain area within an amount of time

[@fadhlinanoer6011]

Plaase turn on your CC please 🙏😌😌

[@vt.physics]

for some reason youtube removed auto CC for this vid. Thanks to you I've just realised it! I've manually added subtitles to it!

[@shahmeeralam1500]

Thnkks

[@DaReelGamerz]

Metres Kelvin is a very unusual unit. I keep seeing it as milliKelvin🤣

[@quickease1374]

Thanks

[@erfanfekri7156]

I call this Yummy physics 😋, thanks for your great way of explanation 👍

[@utsav8786]

i call ur mom yummy too

[@stuartdann7523]

Notification Squad!!

[@RC08197]

Wow

[@adben]

Uv catastrophe explanation

[@patrickhorton4596]

great info... except the bit about flame colors at the beginning - that's just photo-emission in the plasma of the flame. Natural gas burns below 1700K and that is nowhere near the temperature needed to peak in the blue end of the blackbody spectrum.

[@joerussell9929]

Hi

[@tychophotiou6962]

I like your videos but cant get past the 10 second mark because of the horrible background noise. Can you please tell me if you have made any videos where your annoying noisey neighbour is not playing his music while you are talking?

[@stuartdann7523]

First!

[@Gretchaninov]

At 2:06, you misspelled Wien as Wein. Unsubscribed.