Recent content by jink

Yeah right.

Thanks for the idea. I have never really used summation notation, always expanded terms and got my way through. Will try summation from now on. I realized one thing that ∇.A=A.∇ doesn't hold in this case while it holds with vectors. yeah that's fine, I just wanted to think if there is any...

While using the ∇ operator, most of the times we can treat it as a vector. I came across a few formulae(basically product rules).. ∇×(A×B)=(B.∇)A-(A.∇)B+A(∇.B)-B(∇.A) where A and B are vectors I wanted to know if there is any direct way of deriving it. By direct I mean assuming the basic...

thank you for your help guys.

sorry i was a bit late in replying. i also was not able to understand the same thing.so i thought since Δp is large then p also must be large.so i thought instead of writing Δp as m0v we should write Δp as Δ(m0v/√(1-(v/c)2)) and then find Δv. but since i have never seen anyone applying...

ok.thank you,

i tried to apply uncertainty principle to an electron confined in a 3d box of size 1fm. i got uncertainty in velocity Δv to be of the order 1010 m/sec.so i thought maybe i should have taken relativistic mass instead of rest mass. but i realized that for calculating relativistic mass we...