The Stefan Boltzmann Law - A Level Physics

Instead of referring to brightness, astrophysicists tend to look at a star's luminosity. Stefan Boltzmann law tells us that luminosity is dependent on a star's surface temperature and its surface area.
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[@poohjj888]

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[@its_tacit1813]

Interesting content ! Was searching something like this only!! Really loved it!! ......and able to understand it in one go!!
💛

[@Chxxvo]

Thank you so much for this.
Very clear and easier to understand.

[@vt.physics]

you're very welcome!

[@anvayaiyer5614]

I love what you do. May the force of the yt algorithm be with you!

[@vt.physics]

Thank you

[@tychophotiou6962]

My God that background music/noise was so annoying. I couldn't manage to get to the end of the video!

[@tyroboii4986]

your not even trying to be stupid🤣 it's in your veins

[@BigFuture255]

I love what you're doing.

[@bri9815]

Thank you for this. Some people teach others that the area is just area (πr²), it should be the surface area of the sphere (4πr²) so it really got me confused.

[@vt.physics]

Many of my students get the Area confused too. It's quite a common misconception.
Glad the video's helped clarify this!

[@kingshuk458]

As earth absorbs the heat the particularly the area of πr2 , so they used so. But when the heat emits , it emits from its total surface then one should use the 4πr2 . Hope its clear now

[@huzaifaabedeen7119]

you teach better than jee teachers in india

[@technicalstudyTEengineer]

Really good explanation of Stefan Boltzmann's law

[@roqaya_33]

That's really helpful, thank you

[@BrianWrynn]

The Stefan-Boltzmann constant and law is valid for ideal, so-called "black bodies." This video seems to assume it applies equally to all stars. is that a valid assumption? Based on my long-ago physics classes I think that stars may have emissivity close to a black body's 100% but not exactly. Please correct me if I am in error and exlpain why.

[@angelinmary9291]

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Me: Aight fair enough

[@vt.physics]

yay, my master plan worked!

[@QuandaleDingleHasReturned]

There is always a mix between the equation presented in this video and the one that is in other areas, where they talk about how the radiant emittance(or something) is directly proportional to the surface temperature. What's the difference, and which one is the real one?

[@niqanabila109]

OH! thank you so much, i can understand it easelly now 🔥💯

[@VenuGopal-yk8no]

Amazing

[@chapers6719]

Nice and efficient snappy video thank you

[@SWATHY8167]

Amazing Videoooo❤💙No doubts.Thankyou VT physics so muchh🤛🏻

[@N9RT]

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[@أميرعبدالكريمعبدالجبار]

محد

[@N9RT]

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[@adrianwoodlock8433]

Why is the temperature to the power of 4

[@citrarizqin]

Thank you very much for the explanation! Great video!

[@HabibKhan-ir8nn]

Great plz without music

[@itschennnn5744]

Very Clear thanks.

[@beki_45]

Thank you fr

[@WeBBs69]

just joved the way u teached

[@DevereeGreenwood]

Hi❤.
My memory took a nap lasting maybe forty years and YOUR VIDEO is helping a total recall.
I thank you😂🎉❤

[@mathadventuress]

Instead of saying Stefan Boltzmann constant every time it’s used consider just saying sigma

[@vt.physics]

Good point!

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Thanks pops

[@erfanfekri7156]

Thanks a lot for sharing

[@technologymentor786]

nice explanation

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wow

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Really good!

[@frankh.3849]

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[@أميرعبدالكريمعبدالجبار]

شكراً على الشرح الرائع

[@physicsloverjoinmychannel2937]

Cool!!!