Recent content by samsun2024

let x,y,ε in ℝ. if x≤y+ε for every ε>0 then x≤y hints: use proof by contrapositive . i try to proof it, and end up showing that... if x+ε≤y for every ε>0 then x≤y

my worry are gone now, thanks a lot =]

so, is the way that i am doing correct? cos i have done few past exam papers and all of them have one question about uncertainty principle...

But my past exam paper said the equation is ΔxΔy ≥ h/2pi ...

Homework Statement In Bohr model of the hydrogen atom, the max. kinetic energy that an electron can have is around 13.6 eV, as it would otherwise not be confined to the atom. Uncertainty Principle: ΔxΔy ≥ h/2π a) Find the max. momentum of such confined electron. b) Use Uncertainty Principle...