Recent content by preitiey

If wave is a real concept, then why we have a complex(imaginary) part associated with the wave function?

Here one thing I am confused with: we know p = mv, v is the velocity of the particle. if velocity is known, momentum can be calculated. But velocity is determined by the displacement of the particle within some time range. so for that time range, we know where the particle is. This means we know...

Yes, I am talking about applying this principle to macroscopic level, that means to a level where we can watch it significantly. Will this principle hold for macroscopic dimension?

I don't understand here one thing. Holes are created when electrons move from their respective places creating vacancies. Then how can we consider the mass of a vacancy? I mean it should be negligible

In case of a semiconductor, the position of Fermi level in between valence band and conduction band doesn't lie in the middle of the band gap due to the difference in the effective masses of holes and electrons. so, whose effective mass is more- electron or hole?

OK sir, because mass is positive, we have this gravitational force attractive. Someone explained this concept on the basis of cosmic rays, can that be any how?

Can we practically think of this dimension for Planck's constant? If yes, that means we are assuming the energy of quanta and its frequency of approximately same value and that too quite large. possible so?

I was too asking about Newtonian gravity. There is no relation of this question with relativity. I am searching for a satisfactory elaborated answer

what will be the scenario if Heisenberg's uncertainty principle is applied at macroscopic level?

Agree with you both! But gravitational force doesn't depends on mass only. so how can we determine its nature on the basis of mass only? and if we consider relativity, how one can relate it with the force's nature? pls someone elaborate.

why is gravitational force always attractive in nature?