I stumbled upon your lecture....Good one

very well understood sir. You have given a very clear picture of NLO... Thanks a lot..

thank you sir.your lecture is very effective.I got the exact idea about the topic.

@ 11:34 Linear susceptibility = (permittivity / vacuum-permittivity) - 1; the ratio of permittivities is dimensionless and thus linear susceptibility is dimensionless. @ 25:21 But what about the law of conservation of energy? Isn't the energy-output bigger than the energy-input here???

How can the dipoles both vibrate with w and 2w? Or is it some dipoles vibrate with w and some vibrate with 2w?

Awesome lec .. thank u so much sir

Thankyou soo much sir

great lecture, thank you! where can I find more of this series?

Thank you!

Great video sir

THNKU SIR

Hindi me bhi padha dete sir jii🙃🙃🙃