We will observe that ->ki vo purani hai
If we make butter in old form then it would not be as solid as we purchase it from shops as we don't have pasteurised machine in homes so it would be a semi solid form (the rubbery upper layer of milk is only the butter).
Oh sorry I didn't know..
⏩very good morning
sps have lower energy than bulk (or volume) plasmons quantise the longitudinal electron oscillations about positive ion cores the bulk of an electron gas (or plasma). the charge motion in a surface plasmon always creates electromagnetic fields outside (as well as inside) the metal.