Mod-04 Lec-21 Hydrogen Atom: Separating centre of mass motion and integral motion

[@satyakigoswami1702]

Simplicity is the essence of genius! Thank you very much sir!

[@DDDelgado]

It is great to be babywalked into these concepts, thanks for your lecturers, I plan to see them all. :-)

[@wenya7790]

The physical picture of translation motion and relative motion is quite useful. Nice explaination!

[@cagedsoul880]

Long live sir!

[@rosalin8637]

simple and clear..

[@rashibaliyan9153]

Why we are keeping centre of mass fixed ,i mean we can even take the case where electron is moving and nucleus is not at all moving and thus centre of mass is changing . So what changes will occur if we take the case where centre of mass is not fixed.

[@kirtigupta6695]

when the com is not fixed that is the case of relative motion..so nucleus will also move but a very little

[@AnshulSharma1997]

@@kirtigupta6695 But sir said that in relative motion COM do not change.

[@sakshiarya4523]

Since no net external force is acting on the system, the COM will either remain at rest or move with a constant velocity. now whether you work in lab frame or COM it doesn't matter because two frames moving with a constant velocity with respect to each other are considered to be equivalent.

[@ThamaratMoustafa]

thank you very much

[@rosalin8637]

tq sir.

[@drscott1]

👍🏼