LEC-10 Group velocity and phase velocity

[@nandakumaruk3669]

You made the subject crystal clear, why even a novice with basic trigonometric knowledge can understand your lucid rendering of the difficult subject...

[@dailydose8026]

After physics wallah I found you who can give the feel of physics...thank you so much sir❤

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Thanks dear for your appreciation and comment

[@Mathematics.9.10]

Good explanation sir​@@SANJUPHYSICS

[@ugphysics-cbcs1521]

I think, this is one of the best lecture on phase velocity as well as group velocity.

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[@Ab.research]

@@SANJUPHYSICS sir apna WhatsApp no. de dijiye for more doubt please!

[@Ab.research]

@@SANJUPHYSICS how can we know that cos(wt+kx) is expression for phase(velocity) wave?

[@Sonofkalinga]

After your lectures i fall in love with physics....sir plz upload more video on physics.......special classical mechanics

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Dear Satyabrata thanks for your appreciation this comment is really very touching for me Thanks brother Regards Sanju Physics

[@khileshrajput530]

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[@PrinceKumar-st8zq]

Now i get the real feel of physics. Such a great teacher you are...SIR

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Thanks dear for your appreciation, comment and support to the channel. Sorry dear for replying after a long time gap.

[@swatimalik3942]

This is why teachers are the nation pillars......u teach fabulous...sir..... Tnq so much for making videos....

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[@rupam_49]

Sir I am a Physics hons student of RKM. I have got a 20 days leave from my Ramakrishna Mission after my 3rd semester exam.In my 4th sem I have to study quantum mechanics....and I am watching your lectures and making notes....and now become addicted to it.....pronam (namaskar) to you sir....

[@SANJUPHYSICS]

Pranaam dear 🙏 Thanks for your appreciation and comment

[@Dr.kcMishra]

Very nicely explained sir. phase velocity and gp velocity are not only related with quantum mechanics but classical mechanics also....

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[@KRITISHPALRECHABRS]

amazing explaination sir with all those egs...hats off to you and your dedication...you are a an amazing teacher which is very rare in most of our colleges. Our country needs teachers like you. Thank you so much!!

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Thanks dear for your appreciation

[@mradultiwari5820]

Who is this teacher and where he is teaching? Really, he deserves a Wow... All concepts are so nicely and calmly explained, fabulous!!! MNNIT Allahabad ke Prof. SN Pandey bhi itne achhe se Quantum mechanics explain nahi kar paye.

[@SANJUPHYSICS]

Thanks dear for your appreciation Teachers of NIT are the best

[@vinayakmahadik7071]

waah waah and waah !!!! so awesomely explained. Extremely brilliant and wonderful teaching

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Thanks dear Vinayak for your appreciation and comment Sorry for the delayed response

[@Saurabhyadav53363]

Sir aap se padhakar Mai khud ko lucky feel karta hun 🙏🙏🙏👍👍👍🇮🇳🇮🇳🇮🇳💓💓💓

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Thanks dear for your appreciation

[@Anonymous-kw7ls]

Sir in short kahu toh maza aagya aapka lecture dekhkr. Bhut acchese concept smjhaaya aapne.

[@ivankraut5327]

best lectures on quantum mechanics all over the internet

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Thanks dear

[@stanlee8541]

Wow..... Great explanation sir... Keep delivering lectures on different topics...

[@informativepalace]

I love you Sir really Allah ap ko sehat wali lambi zindgi de

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Thanks dear for your prayer

[@BharatKumar-mt9pd]

Kya mast samjate ho sir ji aap... Aapke example are very helpful Thanks you so much🙏💕.

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Welcome dear

[@short_made]

Sir g I see. The lecture of a teacher of iit roorke .. he just do formality .. but after teacher form you. I just wanna say I fell in love with physics❤️ thanx sir for doings precious afforts ❤️

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Thanks dear Sachin for your appreciation and comment

[@harneetkaur1741]

Aap lecture bautt achi tera explain karte ho aapko God always happy rakhe

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[@vikashjain348]

1 no .sir ji 👌👌👌 ultimate explanation

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[@funnyshorts804]

Wow sir I have no word about you .I don't no why❤️❤️❤️❤️❤️

[@shrutijain249]

Amazing skills of explanation sir🤞 With real example 🤩 Thanks a lot sir ☺️

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Thanks dear for your appreciation

[@amanjaiswal1797]

Very well defined . Hats off sir

[@anshulpatidar5226]

best teacher with best examples 😍😍😍😍😍😍

[@santoshsamantoray8179]

Namaste sir 🙏 U r really a gem in physics. I'm really inspired by you...

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Thanks dear Santosh for your appreciation and comment

[@kalimali120]

Sir aapke pass jo samghane ka tarika hai wo bahut hi mst hai

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Thanks dear

[@manjushreenayak8116]

Life changing lecture!

[@raunakmalapure6092]

Sir your explanation was realy awasom sir keep doing the good work 🙏👍

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Welcome dear

[@HimanshuKumar-dv3bj]

Nice video sir. Best explanation

[@Cosmosfacts26]

God level teaching sir 🙇🏻🙇🏻❤

[@ARSHBEER707]

I like your mdu makhi example 👌👌

[@sandeshjainindori9801]

Very good sir 👍 u explain very goodly

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Thanks dear

[@mayanksrivastava6773]

Honestly I was mad and confused at this quantum mechanics part , and sir your videos are so easily understandable thanks a lot for your efforts. There is one more request sir I want to know that how you study physics the books the pattern you follow and how we can get deeper into the concepts

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Thanks dear Mayank for your appreciation and comment Study again and again to understand a concept

[@mayanksrivastava6773]

@@SANJUPHYSICS thank you so much sir

[@srustikanhar5675]

Sir thanku so much. Well explained and fundamentally cleared. 😊😊

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Thanks dear for your appreciation

[@legendAnkit-we6dc]

Sir! 5:20 do the waves simply superpose or interfere? Because interference needs waves of equal frequency and wavelength.

[@freezingmoon5415]

Superpose

[@Rahul.001]

you are an excellent teacher

[@manisankartripura2622]

Mast hai yaar bahut hi sim0le way mai samjhaya.

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[@maansuniverse5305]

What is relation between phase velocity and group velocity ?? (Formula.. l

[@sneharajput9575]

Vg=vp-lemda dvp /d lemda

[@thesoul3461]

Thank you so much, sir. You were awesome.

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Welcome dear

[@saifchemistacademy9638]

Thanks sir you made very easy quantum mechanics for me

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Thanks dear

[@rakesh1444]

Sanju Physics number 1 Physics Wallah number 2

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[@aasimrashidkhanday7086]

Sir at 12:27 you explained the couplet you can't know the future , because you don't know the present thank you sir

[@mohitkwatra9587]

Very simply and effectively explained sir!!

[@physicsouruniverse2798]

you have a deep understandig of physics

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[@kirtipathak6400]

The newton of physice classes

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Dear 🙏 Pathak Please avoid such comments Newton is the greatest He is incomparable

[@SANJUPHYSICS]

I'm just a student of PHYSICS

[@pinkichoudhari235]

Thank you sir 👍 Very nicely explain.

[@seetaramyadav4456]

Thank you so much sir very clear

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Welcome dear

[@sadanandmaurya6616]

Sir what is physical meaning of wave number? Kindly tell me

[@SANJUPHYSICS]

Number of cycles per unit length

[@ayushbajpai9571]

You are next to God sir

[@SANJUPHYSICS]

Dear I am just a student of PHYSICS I don't agree with your comment

[@ayushbajpai9571]

@@SANJUPHYSICS sir that's your kindness but really for me you saved my life

[@aamirstarkhussain1858]

Manobal banay rakhe....we need you Sir👍

[@SANJUPHYSICS]

If you will support me then I have no any problem thanks dear For your emotional support 🙏

[@axleblaze9791]

Thanks a lot for uploading this video 🙏

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Thanks Shatabdi ji

[@kitaabkhayaloki8910]

Sir is this for 2nd year also??

[@SANJUPHYSICS]

Yes dear

[@chandandhuriya5897]

Wow sir nice...👌👌👌👌

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Thanks dear

[@NishuKumari-nx4nk]

Sir plz upload video how to solve questions of quantum mechanics on every topic 🙏

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I will try dear

[@faltu_panti011]

Best ho sir aap

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[@pavanajsridhar939]

brilliant! please make more videos .You explain very well sir!

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Thanks dear

[@IITian_saurabhkumar]

kuchh questions bhi beech beech me karwa dia kare to or achha rahega

[@sonalijain7984]

is it possible to find group velocity if angular frequency , propagaion constant and amplitude of two waves are different???

[@kirankanawade4217]

Sir... each partical is associated with wave .then how it possible ..one partical has different wave

[@muhammadnoumankhan286]

sir can waves of different frequencies interfere ? i think that results in beats

[@SANJUPHYSICS]

The necessary and sufficient condition is that the phase difference should not change with time

[@nehalmir6151]

salam sir, itz an honour to have ur lectures,,,,,,,,ap kon si book follow kar rhy hain?

[@SANJUPHYSICS]

Thanks dear for your appreciation I am following Griffith

[@nehalmir6151]

​@@SANJUPHYSICS"Thanks for your help with quantum basics 🔬. Stay blessed 🙏

[@exploreinto7025]

great teaching

[@s_achannel5482]

Sir cos(wt+kx) ki jiga hum sin (wt-kx) la skta hin

[@SANJUPHYSICS]

Yes dear

[@ishtiyaqqadir7553]

Sir kya AAP notes provide karsakhte hai aik saath taki hum video achi tarah se dekh paye

[@rchendraiah2976]

Sir why one particle is represented by infinite number of waves in quantum mechanics

[@muneebasghar8042]

because the probability of its propagation/location is distributed across the entire space, the path that it can take are infinite and hence the infinite number of waves in wave function.

[@nidhidhingra8544]

Sir I have a doubt why we take Acos(wt+kx) but it's Acos(wt-kx)

[@pawandahal9854]

Sir I watch your videos from Nepal , sir please sepatate videos for MSc and BSc it will be very valueable for us .

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Thanks dear

[@pratyushmohanty6185]

Is there difference in phase velocity and wave velocity sir?

[@SANJUPHYSICS]

Yes dear

[@aehtajazahmed9481]

Phase velocity...When superposition follow by wave...sayad

[@upscdailyupdates]

Nice sir 😊

[@usaid1511]

thanks keep uploading videos

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Thanks dear

[@sehgalmanpreet6326]

also make video on derivation of one dimemsional harmonic oscillator

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Dear wait for one week

[@radhamadhavdas7116]

Thanks sir

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Welcome dear

[@nikitachouhan356]

Superb

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[@jaydeepsahu6614]

excellent sir tysm

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Thanks dear

[@fizicistrasheed6420]

Superbbbbb

[@ARSHBEER707]

Kasssh Hammare clg me bhi app Jesse guru hote😁😁 hmare clg me to 2 din me chapter cmplt kr dete hai

[@sangeetayadav5181]

Sir plzz 8-9 ki video de do plzz sir plz

[@supremeview3668]

Wahh sir I from delhi university

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Thanks dear for your appreciation

[@sagarsantra4480]

🙏🙏🙏🙏

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Thanks dear

[@RakeshYadav-hq5ml]

Sir aap physics ko feeling karwa deye thanks

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[@soumyvyas7147]

Nice sir thankss

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Thanks dear

[@Busabnahi]

Sir make solid state physics playlist also

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Sorry dear not this time

[@satishjaiswal9504]

Very very nice Sir

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Thanks dear

[@Sonofkalinga]

Sir plz comment your alma mater

[@SANJUPHYSICS]

I completed my study from Haryana

[@ch.krishnamurthy3888]

It's very interesting I don't know hindi but try to understand this and At 14.16 sec compare cm n qm that one plz tell me in English anyone plz

[@ankitn4834]

Surroundings noise jada h sar

[@ankitsingh7871]

Itti der mie to mie delli phuch jaunga

[@neherusahu3367]

My friend there is nothing called as velocity in qm and wave itself is a misnomer ur teaching it like a physical wave

[@UPV_Education_Vlogs]

Very bad explanation of quantum particle.

[@SANJUPHYSICS]

I will try to improve dear

[@pri_y_a]

Thanks u a lot sir🙏🙏

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Welcome dear

[@harshitacharya5711]

Thank you sir

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Welcome dear

[@kitaabkhayaloki8910]

Sir is this for 2nd year also??

[@SANJUPHYSICS]

Yes dear

[@IITian_saurabhkumar]

thanks sir

[@SANJUPHYSICS]

Thanks dear 🙏