Steradian | Solid angle | solid angle example | solid angle 3d animation | solid angle animation

[@adityaverma5764]

Awesome explanation! Thanks a ton! Answer: As surface area of sphere is 4πr², and one steradian is subtended by surface area of r². Therefore 4πr²/r²=4π are total number of steradians in a sphere :-)

[@Janvisualphysics]

Yes right

[@godsharry]

Jan visual physics :-)

[@ramdhankumhar6055]

4π=Two hemisphere

[@kantchandrakar8621]

Can we say that a complete sphere is 720 times 1 steradian...i.e, 4π sr.
(Since 4π = 720)

[@bachirblackers7299]

Still there's something to mention : what is the 2d angle resulting of the projection of one steradian cone on a bisecting plan of the same cone ???

[@nosceteipsum5419]

4π sr !
the surface area of a sphere is equal to 4πr², so we get 4πr²/r²=4π

[@spro5575]

Best explanation of solid angle in entire TH-cam

[@RAJANKUMAR-ot9lj]

Area of a sphere =4πr×r
And solid angle =A/r×r ,where A is area and r is radius.
So , total solid angle subtended by
a sphere =4πr×r/r×r=4π steradian.
Am i right?

[@vishantchoudhary8600]

@@dhananjaymahto7810 op kiddo😂😂

[@vishantchoudhary8600]

@@dhananjaymahto7810 it is volume, not surface area 😂😂

[@yanheng5285]

@@vishantchoudhary8600 He's right. It's 4 pi

[@bhaijaansdiary7983]

@@vishantchoudhary8600 you didnt get that bruh...

[@gametune858]

4 π is answer
Stradian = area /r^2
So area of sphere is 4πr^2
Therefore St=4πr^2/r^2
That is 4π

[@suneetkamble5912]

Yes

[@shadabahmadkhan6944]

Very good and useful video who agree with me animation is the best way of understanding the physical concepts

[@shyaamsundar2262]

4pi sr in a sphere !! Good explanation

[@Janvisualphysics]

Yes, right answer.

[@mishidailyroutine]

is it correct to say that there would be 4 pi cones of 1 sr each in a complete sphere ??

[@Janvisualphysics]

Yes right

[@phurailatpamjotin9859]

thank u sir i was having troubles understanding steradian before but not any more .And the ans.to ur question is 4 phi.

[@Janvisualphysics]

4pi steradian

[@radhisharavichandran2090]

Thank you soo much sir . For your awesome explanation 👍👍👍

[@ziadahmad-y4d]

So amazing ❤❤

[@Janvisualphysics]

Thanks for appreciation.
Watch the latest version of this video:
th-cam.com/video/44JCup_ryHo/w-d-xo.html

[@SNoCappidona]

well explained. A disc is 2 pi sr. if you rotate a disc 180 deg... it traces out a sphere... so... 4 pi sr is the answer or 12.566 degrees

[@hellosamanta5929]

12.57 pics not °

[@hellosamanta5929]

Also 12.57 steradian not °

[@illujana2317]

Cant thank u much .... life saver 😚😚😐🤗🤗

[@Taris376]

Dear sir salute to your efforts
Thanks for such a wonderful practical explanation

[@tufailkhan1501]

Very very helpful thanks

[@finnmagee7280]

Thank you Jan, brilliant explanation.

[@antoshgames]

very clear ! thank you

[@sivakarumanchi7428]

What is the use of solid angle

[@Janvisualphysics]

Given in video

[@gosugajendrababu6526]

i never met like you great people
what an explanation

[@75scho35]

Thank you sir !

[@a.k2767]

Sir where is this Sheradian used

[@anika5745]

I also want to know

[@ownermindhindi3447]

Steradian is used as a SI unit of solid angle

[@code_mobile]

Pls which app did you use for the graphics ?

[@Janvisualphysics]

Power point

[@narendrachoudhary80]

Excellent work and excellent way of understanding.. Thank u

[@parthapenny9066]

Explained very well. I understood easily

[@faridullah3711]

Sir one radian is equal to 57.3degree then how many degree in one steradian

[@Janvisualphysics]

Degree and radian are both similar , both are unit of plane angle which is a two dimensional angle while steradian is different, steradian is unit of solid angle which is a three dimensional angle.

[@faridullah3711]

ok tnx

[@thelearner4930]

Thanks sir ❤️

[@jananivenkataraman2679]

what is elementoary angle

[@swetamukherjee9048]

Thank for visualisation.

[@noraizkhan8227]

AWESOME EXPLANATION

[@umeshbhattp]

thank you sir !!!!!

[@FahimKhan-jg1mq]

Weldone

[@anilkumarpg2710]

Easy to underatand thanku

[@talatboghani4837]

Thank you sir. Best online explanation yet!

[@Janvisualphysics]

You Welcome
What is the most confusing topic of physics for you ?.
Share this video with your friends

[@Anjalir1]

Thank u so..much sir for this beautifully explanation
🙏🙇😇

[@esabkhan7901]

Very nice , I need more like this. Thanks from Pakistan.

[@hashilmuhammed8858]

thank you

[@irinpaul4527]

wonderful explanation .thank u sir .

[@harkiratsandhu4283]

Answers : area of water melon divided by area of that steradian

[@jehuariochoffical]

4pisr or 12.5664sr in a complete sphr

[@Janvisualphysics]

Yes right

[@mdsharifalam2706]

Good

[@jabbariqra6097]

Nice explaination

[@a2amazingfacts79]

Well explanation sir 🤗

[@Janvisualphysics]

Thanks for appreciation.
Share this video with your friends

[@gosugajendrababu6526]

I would like to be your student forever even after I achieved a lot than you

[@pranavbalaji7864]

🤣🤣🤣😂🤣😂🤣😂 His English though

[@hunainashraf5858]

Pranav Balaji focus on the lesson tht he is givinggg dnt judge hi m by his englishh

[@kreetisoni9621]

Saliddd angle

[@kuldeepsharma9701]

English is also like Dr. APJ KALAM💝

[@Aryan-to5es]

Ya what's wrong with it dude ??

[@jstofficial4325]

There are four steradian

[@Janvisualphysics]

No

[@Janvisualphysics]

4pi = 3×3.14 = 12.,,,,,

[@khadijatehseen9378]

Excellent sir

[@robertosanchezduarte]

Gracias!

[@anurag8237]

Surface area of sphere/area subtended by one steradian

[@Janvisualphysics]

No
A/square of radius = 4 pi steradian

[@chikkapikka7908]

Grt

[@motasimbillah1667]

Tnxxxx alot brooooo very helpful concept i have ever sennnn...........

[@chemistryClass182]

Wonderful explanation, with very clear voice...

[@hamzazafar8188]

Well explain
Thanks

[@SAGAR-ny2rr]

bro India se ho

[@Anteater23]

Surface Area of sphere = 4*pi*r**2
Area of Steradian = r**2
=> 4*pi steradians on the surface of a sphere.

[@nazirahamd8253]

as we know that area of 3-D objects equal to 4πr²/r²=4π are total number of steradians in a sphere are 4π
so
4π= 4(3.14)= 12.56

[@SaadKhan-xr2xj]

Explain how a water falling from a bottle is an example of solid angle????

[@Janvisualphysics]

The diameter of water at the opening of tape is larger than the lower end. Diameter gradually decrease as water falls

[@SaadKhan-xr2xj]

@@Janvisualphysics Thanks alot

[@sahilrt1999]

Sir radius of a sphere is constant then it must has only one, one steradian

[@creativemind2382]

Sir luminous intensity kia hote hai plz explain kre

[@Janvisualphysics]

Roshni ki shidat ko kehty han

[@creativemind2382]

@@Janvisualphysics how to define it in English through defination

[@prajinkitchen3637]

👌👌👌👌

[@harjeetsingh4203]

thanks for helping us😊😁😀☺😄😘

[@mr.yousafzai3059]

What is reason that area of one steradian is equal to square of the radius?Please reply must.

[@Janvisualphysics]

+Mr. Yousafzai
in this way we get 1 steradian. otherwise not possible. think over formula for finding solid angle

[@ramprasadneupane3448]

Nice video. Meaningful complete and to tbe point

[@RohitShuklagarg]

nice

[@irfanhaider9987]

You explained so nice Sir amazing example

[@vibhavjannu5379]

NUM of cones 4pi sir

[@fitnessandstudyforteengers3160]

Awesome

[@_SankalpaBhusal]

The answer is 4 pie

[@GOODBOY-vt1cf]

thank you!

[@omaraziz8814]

At the centre of melon there are 4π Steradians

[@imacatmeow3574]

Siperb

[@dhanunjayjay6024]

🙌🙌

[@MuhammadQasim-dh5lg]

Really Amazing Explanation Sir

[@Janvisualphysics]

Thanks

[@GoodBoy-hx8lf]

Vv good concept sir

[@ankitadangi1655]

Supubb sir

[@ankitadangi1655]

But give the ans of the question that u asked.. I know that's ans is not 4pi

[@bandelacharansujeev6873]

Awssssssome sir

[@VinayExplain]

4pi steradians for one sphere

[@Janvisualphysics]

Right answer.

[@alanalen7581]

At 2m25s when you're talking about area of a circle, the formula is not r^2, it's pi r^2

[@Spirit365]

pi gets cancelled

[@dhanunjaynaidu2900]

12.57 steredians

[@khushipuri3690]

4π = 4×3.14 = 12.56

[@krithiinrajaanusha7093]

Isnt the area of a circle pie r^2

[@Janvisualphysics]

Yes
pi r squared

[@anamaykane9355]

Too good!

[@grantgibson8034]

JAN VISUAL PHYSICS floating on the screen very very annoying.

[@Soundheaded]

what would be the shape of solid angle in case of coincident planes?

[@Janvisualphysics]

+Sumon Sinha
i shall upload a video related to ur question the video will cover all cases related to solid angle.

[@bidyabharati3619]

Sir its 'll be 4*3.14 no. Of solid angle..z it correct??

[@yogeshv7105]

Nyz explanationn
No.1 channel

[@irfanhaider9987]

Your content is so nice then why u have so less subscriptions

[@hananabid2716]

4π Sr is the Answer

[@AS-xk4gu]

How A is r²

[@ahmednor5806]

🙏🙏💐💐💐

[@craftworld6138]

Answer is 4 steradian

[@suryaanand6455]

If we cut a watermelon into 2 parts ,take one part, the area = R square and same on next, then is there will be 2 steradian.

[@seedfaqer5169]

Watermelon cannot goes to end because pi is infinite

[@tusharsejwal4966]

Osmm

[@ChapterBriefs]

Total solid angle in a sphere is 4π steradian

[@nidashoaib775]

4 pi sr

[@Sarah-mg8pe]

How?

[@todaynews847]

Kya hum app se bat kar sakte in han

[@Janvisualphysics]

Yes

[@pushkarpatel210]

4 *pi

[@harkiratsandhu4283]

Pushkar Patel how plz explain

[@creativemind2382]

R square kis ka

[@Janvisualphysics]

Sphere k radius ka square

[@arvlog1161]

12.57

[@ezequielgonzalez1521]

4PI or 12.5656 = 4 * 3.1414

[@Janvisualphysics]

exactly

[@Sarah-mg8pe]

How?

[@Prakrati0904]

How it came

[@swatkhan1801]

4pi or 12.56

[@sheelapandey7211]

thank u sir