Discovery of Electron || in HINDI
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- Опубликовано: 11 авг 2018
- In this Physics video lecture in Hindi we are going to discuss on the cathode ray discharge tube experiment which led us to the discovery of electron.
In mid 1850s many scientists mainly Faraday began to study electrical discharge in partially evacuated tubes, known as cathode ray discharge tubes. It is depicted
in the figure in the thumbnail. A cathode ray tube is made of glass containing two thin pieces of metal, called electrodes, sealed in it. The electrical discharge through the gases could be observed only at very low pressures and at very high voltages. The pressure of different gases could be adjusted by evacuation of the glass tubes. When sufficiently high voltage is applied across the electrodes, current starts flowing through a stream of particles moving in the tube from the negative electrode (cathode) to the positive electrode (anode). These were called cathode rays or cathode ray particles. The flow of current from cathode to anode was further checked by making a hole in the anode and coating the tube behind anode with phosphorescent material zinc sulphide. When these rays, after passing through anode, strike the zinc sulphide coating, a bright spot is developed on the coating [figure in the thumbnail].
The results of these experiments are summarised below.
(i) The cathode rays start from cathode and move towards the anode.
(ii) These rays themselves are not visible but their behaviour can be observed with the help of certain kind of materials (fluorescent or phosphorescent) which glow when hit by them.
(iii) In the absence of electrical or magnetic field, these rays travel in straight lines.
(iv) In the presence of electrical or magnetic field, the behaviour of cathode rays is similar to that expected from negatively charged particles, suggesting that the cathode rays consist of negatively charged particles, called electrons.
(v) The characteristics of cathode rays (electrons) do not depend upon the material of electrodes and the nature of the gas present in the cathode ray tube.
Thus, we can conclude that electrons are basic constituent of all the atoms.
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Amazing sir
Yeah... .......,..
Sahi hai
Jai hind
Love you esha
@@rambhajihunumanbele9236 Aurat dekhi nahi ki line marna chalu (Mandir khula nahi ki bhikhari aagaye bhik mangne)
Sahi khaha bhai aapne
I ❤
Dear sir,
RUclips पर ना जाने कितनी वीडियो है। मैं भी एक छोटा सा creater हु पर आपका वीडियो देखकर ही मेरी समझ बढ़ती है आपका इन सारे शानदार वीडियो के लिए आपका बहुत बहुत thanks.
Thankyou so much sir. एक बार फिर आपके बारे में कहने के लिए मेरे पास शब्द कम पड़ जाएंगे।
Sir your teaching technique is very good and easy to understand . I understood this concept very clearly
Sir your video is full of content ...no bakwas only padhai...and you cover topics in very short time most efficiently ...other youtbers make 1 hr video for this... thanku sir
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Best concept bilding teaching forever✔
Cathode negative how ? Plz explain and anode posituve
P
I am impressed by your teaching method so much.
Sir ur explaination is much more better than school' s online classes...
Thnq sir👍
This is One of the best Educational Channels ever on RUclips
Fan ho gya mai teching ka n teacher ka sir aap boot acha samjhate ho
You are right
Salute to your incredible work sir. Anyone have less time to complete their whole chapter,I recommend those students to watched your lecture...✨thank you sir for your hardworking for the students.
I genuinely never comment on any lecture but you killed it sir 💫
Viewers may also visit 'Learner's Console' for this chapter too 🙏
nice explanation sir
Sir aapke samjhane ka tarika bahut achha hain.....aur mere aur ham sab bachho ke saare doubts clear...ho jaate hain...thanks sir haame FREE TEACHINGS dene ke liye....thank you a lot...#youaresuperbsir
Kya samjhaya hai sir aapne...fan hogya...har ek chiz point to point samjh aayi
Highly admirable explanation.
This video was better and simpler than the one you made for 9 and 10.
I love this man
4:29 ....here why they didnt get glow because of proton....as simultaneously ....proton(anode ray) also flow from anode to cathode .....so a glow should be seeen in Zinc sulphine behind cathode ......So can anyone explain this ?
Bahut mast video hai.sir no dought to watch this video....thanks sir..
Sir it helped me a lot to understand the discovery of electrons and it was a far better explanation than our school teachers and I have also subscribe to your channel thanks a lot sir😊😊
Thank you sir help me so much please discover proton
Sir mughe bhi ase hi video's bnani h aap Kis app se editing krte ho please tell me sir.... 🙏🙏🙏🙏
Thank you so much, sir. After watching this video it is so easy to understand. it's very helpful
Amazing style of explaining sir thnx 4 the vedio sir
Sir really it helped me... actually my all doubts are clear now after watching ur this one video...thanx a lot sir👏👏
Thank you very much sir. Such awesome explanation is truly rare.
Love u sir. You cleared all my doubts. #Edupoint rocks 🤘🤘
I have one doubt sir
From where were these electrons coming ?.. What was their origin point? What exactly caused them to dissociate from the atoms in which they were present and to move towards the anode ?
there was gas in the tube, electricity dissociated electrons from the atom.
the first cathode ray experiment was done in 1858 or 1854.. or late 1870s... I'm not confirmed about date but it was before 1870.. and we all know that Ammeter was invented by Friedrich Dexler in the year 1884. So how ammeter came in cathode ray experiment which which was done before 1870... I have serious doubt 🧐 plz guys help me if you know...!
@@khansolevishal4761 Bro Idk too...
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Kya explanation hai samajh me
Aagya ache se..........
You cover this complex topic in very easy way
thank u sir ...u helped me a lot.. i was very confused in cathode rays and alpha rays ....
Really very good video.Nice voice.
Your learning process is outstanding..... thanks sir
Nice video Sir my all doubts are solve after seen this video 👌👌👌👍👍👍👍
Thank u soooo.... Much sir it's very helpfull for me and nice explanation l hv no doudht now in this chapter
Sir app itni complex topic ko itna aashan kaise baba dete ho ?love you❤❤😘😘⭐⭐♥️🍓🍓🚩🚩🍰🍰🍩🍩🍭😊🎖🏆
Sir you rocked it.
Mujhe ye concept bahut ache se samajh aaya
Thanku so much sir.
sir aaj tak koi itna bhtreen nai smjhaa paaya tha ❤️ bhut bhut shukriya apka
Wow..sir very nice teaching..😊😊😊
nice sir plzz make continuity in this topic I mean order me electron, proton ,neucleon,neucleous, atom sbki inventory
Nice Sir
pradeep chaudhary super
Nice
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Sir mughe bhi ase hi video's bnani h aap Kis app se editing krte ho please tell me sir.... 🙏🙏🙏🙏
I have no words to say about this excellent video plz carry-on very very helpful 🙏
Sir awesome explanation , loved it very much . 🤩🤩
Samagh me aa gya sir
Thankyou
Thanks sir for clearing my douts
U and ur explaination is brilliant👍
Really marvellous explanation sir👍👍👌👌👏👏
One of the best video i found in youtube about discovery of electron
Thank u so much sir 😊
thank you so much sir your explained this topic in an amazing way.🙂
Books se kuch clear nhi ho rha tha but aapke video se bht kuch clear ho gya.....
THANKS...
Very nice video sir.... I am impressed by your videos and work you do online for enlighten us...... Best........................
Undoubtedly, the best lecture on Cathode Ray Tube Experiment...👍
Makhhan mt lgao 😅😂🤣
Best explanation that i have ever seen on utube
You teach so so well!! Thank you!!
This was so helpful sir, thank you so much
*Amazing Explanation Sir !!*
*You deserve 5M+ Subscribers*
Incredible teaching style... Thanks sir... 🙏🙏
Finally peace of electron ka lecture mil gya....Awesome video h maza aa gya dekh kr
4:29 ....here why they didnt get glow because of proton....as simultaneously ....proton(anode ray) also flow from anode to cathode .....so a glow should be seeen in Zinc sulphine behind cathode ......So can anyone explain this ?
No words about your teaching , Thanks sir
Thankyou so much sir,you just made this topic easy .
You know what,you teach very well as compared to the educational apps like toppr etc.pls keep making more videos .Your writing was so good👌🏻👏
Nice video sir
thank you sir it remained very help ful to understand cathode ray experiment in very simple words and saved my time (thanks a lot)
My all doubts are clear Thank u sir your new subscriber
Super SIR , all doubts are cleared hats off 👏👏👏 to you one week lecture understood in 11 minutes👌👌👌
243 dislikes are those electrons which didn't get accepted 😂
One of the best video i found😊
in ▶️ about discovery of elctron thank you sir
Great sir.🙏 I'm your big fan sir😊🙋
Sir .... discovery of protons and neutron pr bhi video banaye n...
Thanq sir
please sir
Nise
Yes sir please..
Yes sir please make vedio on other two...😶😶
Yes
Sir app hamare teacher se bhi accha padhate hai
Super oxm ..loving ur teaching skill....💓
Vwry well explained sir best video for this topic
Thank you so much sir . I was not able to understand it until you taught it. Your teaching is so good . please make more such videos for 11th n 12th
Sir you said that there was not any glow behind the cathode when cathode was perforated. So where are the positive particles. they have to pass the cathode and they would cause fluorescence and that's how protons were discovered.
Finally I got a best vedio after watching 3 ,4 vedio related this but this vedio make me well understood and easily I understood...
yeeeeeeeeeessssssss very well explained.....each and every sentence even word is worh listening....
Can u pls make an video on nuclear packing fraction , packing fraction per nucleon and relation ship between packing fraction and BE 🙏🏻
Those videos will come at right time.
Physics class 12 part 2 Nuclear Physics
This is really helpful video
Very nyc and proper explanation also sir...
My all doubts are clear after watching your video u r suberb teacher,☺️
Sir one more thing sir cathode banane ke liye vo uske shape or size ke upper depend nhi hai per usko banane ke liye usko banaya kis material se hai vo depend kerta hai
No
Excellent explanation sir thank you so much for teaching us ☺️
You are a good teacher . This video is very helpful for me. Thankyou so much sir
Superb sir your explanation skills are ultimate
Your method of teaching is so good
#Padhailikhai
I felt that no one else teach like that by using ametre
Sir I became a big fan of Ur explanation
I understand Discovery of Electron , thanx 4 understanding.
Sir numerical solve kese kare
Why electrons just passed through anode????
Why they didn't stuck there???(-particle & +elecrode)
Nice thinking ability dude.. sir kindly reply to his question. Please
It also stric on anod but visible on back only as there was Zink sulfit was coated
Because of coating with florescent....
@@AhmadRaza-li9hb so u mean that electrons only strike not stuck due to coating?
Kuch particles sirf waha se flow hue aur anode me ek chhed nahi hai balki bohot se chhed hai isliye - + se attract hokar uski taraf badhta hai aur chhed se nikal jata hai
Thank u so much sir... 🙏🙏🙏 really nice explanation. 👍😊😊😊🙏
Thank you sir,you are doing the most auspicious duty .
Sir ap jaqinan la jawab hae...please keep on...
Thanks sir this helped alot me in chemistry
The way your are explaining was awesome!!!!!!💯
Thanku very much sir u cleared all my doubts .
Thank you sir , I am astonished by the patient and focused method of your teaching , loved it.
The concept of discovery of electron and also current in conductors is crystal clear now .
I expect more videos from you ...
Sir , ammeter do not show any deflection
Deflection is shown by galvanometer
Bro you are true but sir discharge tube ki baat kar rahe hain aur ammeter dikhata hain ki current pasa ho raha hain ki nahi galvanometer to sirf current ka presence dikhata hai
thanx a lot this video was very helpful
now i am able to explain the cathode ray experiment on my own
Sir amazing video. Thanks a lot☺☺☺
Outstanding teaching by outstanding teacher
Sir proton ki discovery me anode Ray cathode ke piche lagne wale flouresent material se hit huye to apne kaha jab scientist ne cathode me hole kiya to zinc sulphide glow nahi huya why???
Mera bhi yehi question tha but humary sir nay yeh electron ki discovery may cathode ki perforation ka kuch nahi bataya.Unho nay kaha k rays cathode say anode ki taraf ja rahi thin, yeh aisy pata Chala k in par negative charge tha
Because flow is from cathode to anode
Excellent explaination thank you so much sir for this helpful video ......
I AM VERY GLAD FULL TO YOU DEAR SIR............
You are great sir plz make more video of class 11 science. Plzz reply yes or no😊😊😊💐💐💐
I was stressed up learning about Cathode Ray in my particular textbook, but when I saw your video , I was like wow, so easy
Thank you for your explanation , bro
@@sonalipriyadarshanisahoo5340 j j Thompson
@@sonalipriyadarshanisahoo5340 it was first observed by William crooks but later by applying electric by J.J.Thomson,it was proved...
So the real discoverer of electron was J.J.Thomson
I understood this lecture, good explanation.Thank you sir.
Very nice sir now my doubts are solved