sir i just love your video .. i am in grade 10 and I just love the way you teach... sir, keep making this amazing video , we all 36.1k + followers are with you, and will definitely support you....
consider single interaction of alpha particle with an electron before interaction the alpha particle has kinetic energy t and electron is at rest after interaction alpha particle loss kinetic energy ∆T relation between t and ∆T
In alpha decay process an alpha particle which is a He nucleus with 2+ charge is emitted. I would like to know what happens to those 2 electrons (electrons are emitted in beta negative decay) which are lost in alpha decay. Ur lectures are very impressive n informative.
Hi that's a very good question. Usually in nuclear experiment we are not concerned with the electrons orbitting the parent nuclei. But once parent nuclei emits and alpha particle (its atomic number decreases and it becomes a new element) it doesn't need those 2 electrons otherwise it woul become a negative ion. There is a possibility of the alpha particle to attract those 2 electrons and become neutral helium gas
Thank you for the answer. I was wondering, will it be wrong to say in alpha decay both He(2+) and electrons are emitted and a new elemental isotope is formed. Relating to beta minus decay where a neutron is converted to a proton and an electron, an alpha decay actually gives electrons also. Books don't discuss all these in much detail. Well, is it because in alpha decay electrons are emitted from the orbitals and not from the nucleus unlike beta minus decay.
how is the momentum of daughter nuclei and alpha particles same? According to conservation of linear momentum law, the momentum of the system remains constant, it doesnt mean that the momentum of two different bodies in the system have to be equal????? pls explain sir!
Hi. To answer your question, in the start, the system is assumed to be at rest and hence the momentum of the system is zero. After the decay both of them attain some momentum however their resultant must still be zero considering the conservation of momentum. Since their velocities are in opposite directions and there are only 2 bodies in the system, their momentums can be equated. Hope that makes it clear!
Plzz explain How you write eqn 1 Momentum of parent nuclei should be equal to the sum of momenta of two daughter nucleii Plzz sir I get confused plz explain the eqn 1 you written
In some books and problems while calculating Q value , mass of electron is excluded from rest mass energy of the product and nuclei. So is it correct to say rest mass energy of nuclei rather than products/reactant? Kindly reply asap
Kinetic energy of a particle depends on mass m and square of velocity there is misconception that more mass has more k.e but from conservation of linear momentum we get m v of alpha = m v of daughter nuclei Which shows that recoil velocity of daughter nuclei is less because it has more mass and velocity of alpha particle is more bcoz it has less mass so finally k.e is directly proportional to square of velocity and hence most of disintegration energy is for alpha particle
Because proton mass is less than that of neutron. Inside nucleus, this missing mass is compensated from the BE of nucleus. In empty space it's not possible
![Alpha, Beta & Gamma Decay [Complete Discussion]](http://i.ytimg.com/vi/eUEgpcQHzIA/mqdefault.jpg)
Gamow's Theory of Alpha Decay & Geiger-Nuttal Law:
th-cam.com/video/suj5MTLGAUU/w-d-xo.html
This is awesome. Content is epic, The english is fabulous and the explanation is lucid and clear...wow.
Ps - Those nuclei drawings look beautiful.
Well said!
Finally i found what i wanted! The only perfect explanation video on youtube for this concept!
Plz keep making more videos!
I like your silicon valley DP
The finest and the easiest way to learn 👌👌👌 the concept of physics ❤️❤️❤️❤️🙏🙏🙏🙏🙏
No words in dictionary can describe how beautifully u do the lecture sir... I love physics becaz of you.. Thank u sir..😍😍😍hope to see many videos ....
sir i just love your video .. i am in grade 10 and I just love the way you teach...
sir, keep making this amazing video , we all 36.1k + followers are with you, and will definitely support you....
Thank you so much! just cleared all my confusions
I can't thank you enough! That was a great effort, Sir
Till now i’ve been confusing binding energy with q value. Never taught about the kinetic energy part. thanks a lot sir.😌
Very nicely explained with beautiful clarity. Lucid English. Lovely Atoms
❤️❤️❤️❤️
Now I understood this finally
Thanks a lot
I got stuck in this topic since 2 hours 😂
Explained very well. Thank you Sir.
This is really helpful I am lucky I found this video
Writting gajab hai aapki sir all doubts are cleared thank you😁
So detailed and clear description ... now I'm able to solve a certain kind of question..
Thanks. Interesting and simple presentation.
Thank you Sir u really cleared my all doubts
Thank you very much sir,
Very simple and conceptual approach.
Lot of best wishes from another walter lewin fan here...crisp content
Thanks:)
As always, thank you sir
Your explanation is like oh my God😙
loads of love. THANK YOU for your fabulous lectures
brilliant explanation sir.
crystal clear explanation
Epic explained
Ur explanatory power is gajab
Thanks :D
Awesome Sir
Finally I understood it.
Thank you sir❤
Nice voice sir and best explanation
Nice explaination
Awesome sir.. And thanks for your service
Thank you so much sir. Your explanation was smooth
Excellent
Thank you so much.
consider single interaction of alpha particle with an electron before interaction the alpha particle has kinetic energy t and electron is at rest after interaction alpha particle loss kinetic energy ∆T relation between t and ∆T
Great quality videos as always
Thank you sir ❤️
Thank you very much! You earned a subscriber!
Thanks a lot Sir 🙏 🙏 awesome explaination 👍
great explaination. thanks, #FortheLoveOfPhysics
Very nicely explained 👍
You are just amazing sir but just kindly provide notes too about calculation and derivations
Thank you sir
Perfect
In alpha decay process an alpha particle which is a He nucleus with 2+ charge is emitted. I would like to know what happens to those 2 electrons (electrons are emitted in beta negative decay) which are lost in alpha decay. Ur lectures are very impressive n informative.
Hi that's a very good question. Usually in nuclear experiment we are not concerned with the electrons orbitting the parent nuclei. But once parent nuclei emits and alpha particle (its atomic number decreases and it becomes a new element) it doesn't need those 2 electrons otherwise it woul become a negative ion. There is a possibility of the alpha particle to attract those 2 electrons and become neutral helium gas
Thank you for the answer. I was wondering, will it be wrong to say in alpha decay both He(2+) and electrons are emitted and a new elemental isotope is formed. Relating to beta minus decay where a neutron is converted to a proton and an electron, an alpha decay actually gives electrons also. Books don't discuss all these in much detail.
Well, is it because in alpha decay electrons are emitted from the orbitals and not from the nucleus unlike beta minus decay.
very very ... nice sir thank you , keep on.
amazing you earned a subscriber
how is the momentum of daughter nuclei and alpha particles same? According to conservation of linear momentum law, the momentum of the system remains constant, it doesnt mean that the momentum of two different bodies in the system have to be equal????? pls explain sir!
Hi. To answer your question, in the start, the system is assumed to be at rest and hence the momentum of the system is zero. After the decay both of them attain some momentum however their resultant must still be zero considering the conservation of momentum. Since their velocities are in opposite directions and there are only 2 bodies in the system, their momentums can be equated. Hope that makes it clear!
very good explanation!!
Awesome lecture
Thanks
Thank you sir to remind me
Thank you sir 🙏
amazing explain! thank you so much :)
Thank you so much
Thank you.
Sir please make lecture series on elementary particles
Coming soon. Once I am done with nuclear, i will prepare a few videos on particle physics :)
Here we see Q value as kinetic energy but some amount of it(Q value) should be dissipated in form of heat. In calculathetion why we ignore it?
At 2:05 is it not wrong?
The mass of both daughter nuclei will be greater than parent nuclei?
Please clear my confusion!
great video sir. in what form is the rest(1,7%) of the energy expressed in?
Recoil of the daughter nucleus
Thanq sir
Its very nice
Thank you so much Sir
You're welcome :)
Isn’t uranium stable?
Oh thanks
Help me alot
Wow
Plzz explain How you write eqn 1
Momentum of parent nuclei should be equal to the sum of momenta of two daughter nucleii
Plzz sir I get confused plz explain the eqn 1 you written
During alpha particle emission, usually the material is at rest, that means momenta of parent nuclei is zero
Sir kindly solv the problms related to this topic
In some books and problems while calculating Q value , mass of electron is excluded from rest mass energy of the product and nuclei. So is it correct to say rest mass energy of nuclei rather than products/reactant? Kindly reply asap
How come you can cancel out va^2 in the 4th line of equation 2?
Sir how to show the nucleus is a quantum sysytem?
most of the disintegration energy appears as kinetic energy of alpha particle, why??
Kinetic energy of a particle depends on mass m and square of velocity there is misconception that more mass has more k.e but from conservation of linear momentum we get m v of alpha = m v of daughter nuclei
Which shows that recoil velocity of daughter nuclei is less because it has more mass and velocity of alpha particle is more bcoz it has less mass so finally k.e is directly proportional to square of velocity and hence most of disintegration energy is for alpha particle
Plz tell me why conversion of proton into nutron is only possible in nuclus not in space or atmosphere
Because proton mass is less than that of neutron. Inside nucleus, this missing mass is compensated from the BE of nucleus. In empty space it's not possible
♥️
What is that mean when i get the Q-value is negative?
You have to give energy
i.e non spontaneous
This is art not lecture not ant lecture
Finally! 😪
Ok
Actually I knew it but forget
love from pakistan
Thanks brother :)