sir aapko shuru se hi btana chaheye tha ki sab electron ke paas same energy hoti h... m thoda bhut ab confused ho gya... but sir ur lecture deserves a standing ovation... love u sir
Excellent sir.... You way of teaching is amazing.... I never seen such a dedicated teacher.... Those students much more lucky that they got a chance to read from you live.... Thanks a lot sir... For giving your 100%
Sir u r great....means every compliment is less for u...u know what u helped me do much in class 11 as well as in class 12 ...u make me undrstood all the concepts of physics...that makes me toh get highest marks in my class...in our school..nobody focus on concepts bt u r different froms other ...i m unable to understand how much u have a clearification of all the concepts nd from which institute u have got all these knowledge ..i wanna write more about u becoz how much u helped me u cant imagine...i wanna met u ones in my lyf..nd apprrciate ur work...thanku very much for sharing your knowledge with us..u have a great personality..u r the father of physics..your way of explaining is really great i wanna appreciate u more...sir..😋😋😊😊🤗🤗🤗🤗🤗
Colour is characteristic of frequency and frequency is characteristic of energy source (E=hf), if we first cover a light source with red wrapper and then with blue wrapper then why we are able to identify different colours in either case as in both case source is same and so frequency also... ?
Sir I have a confusion.plz solve it. In hallwachs nd lenards expe.first we put light of apt frequency on cathode (A)-ve and see that e- moves to anode (B)+ve. And when we say that we give the voltage in negative to anode (B) it means anode and cathode are interchanged . And now we put the light on new anode (A) and try to emit the e-.is it right?... In this condition why current does not flow.rather e- have path to flow this anode to🔋and then cathode.cathode also repel the photo e-.plz reply
Sir can you upload some videos regarding special theory of relativity! Some phenomenon of this theory i.e Time dilation etc. It would be really kind of you!
the electron will travel towards the -ve potential with some KE but also at the same time will be attracted by the +ve potential on the left electrode..but the electron travels towards -ve potential anyways...so that must mean the the forward KE minus the positive potential will give the net energy with which the electron travels and that energy must be equal to -ve potential...i am a bit perplexed..pls clarify if i am wrong
Sir plz clear my doubts.. I have been trying to find out the answer for very long time.. No one could answer me correctly Colour is characteristic of frequency and frequency is characteristic of energy source (E=hf), if we first cover a light source with red wrapper and then with blue wrapper then why we are able to identify different colours in either case as in both case source is same and so frequency also... ?
I have a question. It'd be better if you cleared out my doubts. Sir, In the graph between the frequency of light and photoelectric current (keeping intensity constant), you said that the current increases slightly and you've done the same thing in the graph too. The no. of electrons remains constant but why there's slight increase in the current? I tried this one with Phet Simulations and the photoelectric current increases significantly? Why does this happen ? Please reply , Sir! Is that due to the increase in velocity of electrons that increases after electrons are ejected due to increased frequency of light ?
Pls sir clear my doubt sir as we know metals are lustrous that is they can reflect light . so when we fall light on metal having shiny surface ,light will be reflected so how will the electrons deep inside the surface with higher work function will get energy to come out ? please clear it sir
current will increase by changing intensity until all the free electrons ejects.(means if a plate has 50 free electrons..current will increase until all free electrons(50) not ejected by changing intensity...nd after that current became saturate..
thank you so much for the best explanation of photoelectric effect on youtube sir please make a video to explain Black body radiation and special theory of relativity
E=hf Energy of photon is directly proportional to frequency Jada frequency ke light me jada energy hoga Therefore usse nikaale huye electron ka KINETIC ENERGY jada hoga isliye usko rokne ke liye stoping potential bhi jada lagega KE is directly proportional stoping potential So frequency is directly proportional to stopping potential.
Very nice lecture sir , but as you said initially the one terminal is - and one is + and we get the current as a saturation but as we reverse the polarity then another terminal became - and first one became + and as first one became + how electrons comes out i didn't get it because according to charge property its contradictory
ek accha teacher woh nahi hota jise zyada knowledge hoti hai ....... ek achha teacher woh hota jiski bat hame zyada achhi trah samach ati ho aur rahi comparison ki to hum kisi ko uski knowledge ke besis par yahan judge nani kar sakte par kyonki hum student to ek teacher ko kase padana chahiye ya kaun concept acchi tarah clear karta is basis par to judgement zaroor kar sakte par kis ki judgement kitni sahi hai depent karta but somewhere you are also right
india's best physics teacher . THANK YOU SIR .....................................
Youarebest teacher
maybe world's best
Where are you currently
@@mranjaan5193 he is no more
@@neelambisht7114 😔😭😢
I smiled suddenly in between the lecture automatically .
Perhaps That's real teaching.
🙏🙏🙏🙏
Best explanation everrrrr thank u very much sir !!!! I would have never understand this in my life unless you have explained it!!!!
Pradeep sir , Best ever Teacher in the world...
Sir, i tried many lectures, but didn't understand any , but found u ......u were the best!!!!!!!!!!!!!
Best explanation ever !!
Thank You so much SIR.
Ko
sir thanks for shearing ur knowledge with so much dedication u teach with. such a great potential
1:22:29 min kaise gujar Gaye bilkul pta hi nhi Chala amazing explanation sir 🙏🙏🙏🙏
best physics teacher, I am in love with Physics now!
Done Self less job!!! You are a blessing sir..
sir aapko shuru se hi btana chaheye tha ki sab electron ke paas same energy hoti h... m thoda bhut ab confused ho gya... but sir ur lecture deserves a standing ovation... love u sir
Really you are great sir concepts clear sir -ThankS
Thank u sir😃😃
For creating intrest in physics
u teaches everything in detail....thank u very much sir....
You r the best sir Thankyou very much sir
Sir in stopping potential at 33:45 timing ,what is + plate signifies. Sir please reply fast?? I am waiting for your reply🤔🙄
Thank you sir, best teacher in world. Physics
Excellent sir.... You way of teaching is amazing.... I never seen such a dedicated teacher.... Those students much more lucky that they got a chance to read from you live.... Thanks a lot sir... For giving your 100%
best teacher evr
sir plz suggest the way for preparation of iit jee
Sir u r the best teacher ever of physics aur waah...sir ji tushi great ho
U r the best teacher of physic
sir if we change the metal surface , then what will happen?
Awesome explanation
What an incredible teacher
thank you GOD (Pradeep sir)
At 9:40 ,sir INTENSITY IS LIGHT PER UNIT AREA, SO IT DOESN'T MATTER THAT HOW MUCH LIGHT IS COMING THROUGH WINDOW IN INTENSITY.
awesome.....
but plz make short video
India's best teacher
You are great sir
thx so much...........
jay mata di
Sir kindly ye bataye ke frquency ka light ke colour se kiya relation ha?
Sir u r great....means every compliment is less for u...u know what u helped me do much in class 11 as well as in class 12 ...u make me undrstood all the concepts of physics...that makes me toh get highest marks in my class...in our school..nobody focus on concepts bt u r different froms other ...i m unable to understand how much u have a clearification of all the concepts nd from which institute u have got all these knowledge ..i wanna write more about u becoz how much u helped me u cant imagine...i wanna met u ones in my lyf..nd apprrciate ur work...thanku very much for sharing your knowledge with us..u have a great personality..u r the father of physics..your way of explaining is really great i wanna appreciate u more...sir..😋😋😊😊🤗🤗🤗🤗🤗
can it be right to say higher the frequency ,more negative is its stopping potential
can anyone reply
Yes it is right
Frequency is directly proportional to stopping potential
And by definition stopping potential is a negative term
Colour is characteristic of frequency and frequency is characteristic of energy source (E=hf), if we first cover a light source with red wrapper and then with blue wrapper then why we are able to identify different colours in either case as in both case source is same and so frequency also... ?
👍👍👍
Badiya..bahut badiya
thank you respected Sir
sir I think u r the father of modern physics
Va re
Not only modern, but also classical physics
Sir I have a confusion.plz solve it. In hallwachs nd lenards expe.first we put light of apt frequency on cathode (A)-ve and see that e- moves to anode (B)+ve. And when we say that we give the voltage in negative to anode (B) it means anode and cathode are interchanged . And now we put the light on new anode (A) and try to emit the e-.is it right?... In this condition why current does not flow.rather e- have path to flow this anode to🔋and then cathode.cathode also repel the photo e-.plz reply
Sir can you upload some videos regarding special theory of relativity! Some phenomenon of this theory i.e Time dilation etc. It would be really kind of you!
Something like twin paradox
something like quantum mechanics
Superbbbb
the electron will travel towards the -ve potential with some KE but also at the same time will be attracted by the
+ve potential on the left electrode..but the electron travels towards -ve potential anyways...so that must mean the the forward KE minus the positive potential will give the net energy with which the electron travels and that energy must be equal to -ve potential...i am a bit perplexed..pls clarify if i am wrong
Sir plz clear my doubts.. I have been trying to find out the answer for very long time.. No one could answer me correctly
Colour is characteristic of frequency and frequency is characteristic of energy source (E=hf), if we first cover a light source with red wrapper and then with blue wrapper then why we are able to identify different colours in either case as in both case source is same and so frequency also... ?
Sr NCERT ke salution bhi upload kr dijiye sr ...
Missing you sir, u have taught me a lot,,
Best....... 🙌🙌🙌🙌
Big fan sir✌️✌️👏👏👏
Sir how can we give different colour of light pls explain if source is same
God of physics
well explained .
Sir ....energy ka intensity k saath koi relation nhi .....to kya wave theory wrong h
Thanks alot sir
Best chanel
in 44:49 sir i thing -ve plate say electron nhi nikalat
Sir can you help me out..! Why this evacuated glass tube is given a way to enter uv radiations...! As they can enter without this also...?
And one more thing... Is this nozzle is open..? If open, then how it will be the evacuated tube?...
Glass tube is evacuated because air particles brings resistance in the flow of electron
Because air is insulator of electricity
@@siktayadav6811 there is no need of nozzal to be open for entry of light
Because it is transparent glass
Shivendu Singh shivam oh.. Okay! Thanks.. :-)
I have a question. It'd be better if you cleared out my doubts.
Sir, In the graph between the frequency of light and photoelectric current (keeping intensity constant), you said that the current increases slightly and you've done the same thing in the graph too. The no. of electrons remains constant but why there's slight increase in the current? I tried this one with Phet Simulations and the photoelectric current increases significantly? Why does this happen ? Please reply , Sir!
Is that due to the increase in velocity of electrons that increases after electrons are ejected due to increased frequency of light ?
currect increases when voltage is applied to plate ...its just that more electrons will b attracted to plate rather than few so current increase
sir plz say numbers in english not in hindi
Thanku
Hy aarti
you nailed it Sir
You are great sir brilliant!!!
Pls sir clear my doubt
sir as we know metals are lustrous that is they can reflect light . so when we fall light on metal having shiny surface ,light will be reflected so how will the electrons deep inside the surface with higher work function will get energy to come out ?
please clear it sir
Koi bhi substrance 100 percent reflectors nahi hota hai
Awesome
Sir intensity electron nikalta hai ki frequency
Vikash singh frequency ki wjh se 1:10:20 pe h
Sir u are best but sir can you upload some topics about special theory of relativity and other related topics with it
Sir if power is function of intensity and colour is function of frequency ..then energy=frequency × planck's constant ...how make sense...confused 😑😑😑
Awsme sir
sir how does the current flows without resistance or load i think it implies a short circuit isnt it? plz reply sir(in hallwach and lenards experiment
Thank u so much sir... U are great
can potential be negative sir ........................ pleaseeeeeeeeeeesssssssssssssssseeeeeeeeeeeeee reply
Sir u r best, thank u so much 😊
IS THERSHOLD FREQ IS SAME AS MINIMUM STOPPING POTENTIAL
i think maximun stopping potential
why we Do not use AC
arrangement
Best video sir
You are great
How current increase by changing intensity when one plate(from where we're ejecting electrons) have only certain amount of electrons?
current will increase by changing intensity until all the free electrons ejects.(means if a plate has 50 free electrons..current will increase until all free electrons(50) not ejected by changing intensity...nd after that current became saturate..
sir. u r the best
my.......guru..ji.....
Hats off sir 👏
Very nice video
Watch it at 1.25 speed
Devashish Gupta I watched it at 2×
😊😊😊
I WATCHED IT AT4X
Maachudalo
Nice sir, i extremely getting related to civil foundation.
best sir
thank you so much for the best explanation of photoelectric effect on youtube
sir please make a video to explain Black body radiation and special theory of relativity
how we increase negative potential?
thank you so much
Frequency se hi kyo stopping potential bdalta hai essa kya hai ussme
E=hf
Energy of photon is directly proportional to frequency
Jada frequency ke light me jada energy hoga
Therefore usse nikaale huye electron ka KINETIC ENERGY jada hoga isliye usko rokne ke liye stoping potential bhi jada lagega
KE is directly proportional stoping potential
So frequency is directly proportional to stopping potential.
Thank you sir
Nice tq sir.
Thank u so much sir 🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗🤗
love you sir just love you
sir pls. try to new lacture vedios become short between 40 -50 minutes .
Thanks sir
🙏🙏
I like it...
DEEPAK KUMAR htt
Very nice lecture sir , but as you said initially the one terminal is - and one is + and we get the current as a saturation but as we reverse the polarity then another terminal became - and first one became + and as first one became + how electrons comes out i didn't get it because according to charge property its contradictory
Hey i have the same doubt. Have you got your answer?
U are the father of physics
pradeep kshetrapal >> hc Verma
sorry concept of physics
both are great teachers
No bro u r not able to tell it . Both are undefined.
nope brother we don't have any right to compare teachers both are geniuses in their own field..
@@kirtiazad6083 tera baap bar le
ek accha teacher woh nahi hota jise zyada knowledge hoti hai ....... ek achha teacher woh hota jiski bat hame zyada achhi trah samach ati ho aur rahi comparison ki to hum kisi ko uski knowledge ke besis par yahan judge nani kar sakte par kyonki hum student to ek teacher ko kase padana chahiye ya kaun concept acchi tarah clear karta is basis par to judgement zaroor kar sakte par kis ki judgement kitni sahi hai depent karta but somewhere you are also right
Physics sir this tipe
What proves that in wave theory intensity is a function of energy .
I am
nyc
Adhbhoot.......