Mod-09 Lec-35 The JWKB Approximation

[@elamvaluthis7268]

How patient and serene in doing.

[@dr.rahulgupta7573]

Simple presentation by an eminent professor .wow !! DrRahul Rohtak Haryana

[@grapako]

2:53. u(x) it's whitout complex number "i". "i" belong to de exponential.

[@Gurukul22]

thank you very much professor 🌼😇🙏

[@motivationvideos2452]

thank you sir ...its continue lecturer in physics i pripeard in net physics.

[@aiswaryathilakan2588]

Thank u so much sir🤗🥰🫂

[@muskanhada9454]

Thank you so much 🙏🏻🤗💗🙂

[@MeNa940-g6f]

Thank you so much! It was very helpfull!!!

[@mousripaul3673]

sir why i choose | [{1/k(k'(x)}] | this term as a validity condition?

[@nitinchauhan2666]

That is the approximation taken by WKB. And this is also the limitation of this method if this condition does not satisfy then WKB approximation fails.

[@jacobvandijk6525]

The JWKB-approximation = The Jeffreys-Wentzel-Kramers-Brilliouin-approximation

[@pikujangra1365]

thanku so much sir

[@ChrissiM90]

I do not agree at 19:00. How can we neglect the highest order term so easily? I mean consider the following you have ax^2+bx+c. now solve this to x=... and let a go to zero. thats similar to what happens at 19:00. But if you wirte x=... down you will see, this cause some serious problems if you let a-->0.

[@AravindRavi_sword_of_science]

ChrissiM90 First of all, second derivative is not equivalent to a quadratic term with power two. Secondly, the assumption is that F is slowly varying such that you can ignore the second order derivative and make the other terms in combination give zero. The aim was to find such an F. That's what I understand here ! Cheers

[@nitinchauhan2666]

@@AravindRavi_sword_of_science totally agree with you....

[@nitinchauhan2666]

@chrissiM90 X^2 and X'' are not the same thing. derivative tells about the slop of function. if he is already assuming that F is slowly varying function in this case, X'' can be ignored.

[@donaldhuidrom4973]

pulls too much reference from his previous video.

[@alkathakur9122]

sir plz help me i want problems solution how we can find solution of problem and numericals with wkb solutions plz teach us

[@DanielWalker-l8q]

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