Horcrux through the veil

[ecaplan_52556]

No: HPFGUIDX 157118

If a horcrux object passes through the veil of death (at the Ministry
of Magic), does the piece of soul inside die?

Is this how Dumbledore destroyed the piece of Voldemort's soul in the
ring horcrux, by putting his (Dumbledore's) hand into the veil's
archway and quickly pulling it back out again?  And thus, this is why
Dumbledore's hand was dead/dying?

Corallary question: if you put the end of a branch with leaves
flourishing on it behind the veil and pulled the branch back out, what
would be left of the flourishing leaves?  Would the rest of the plant
that didn't get put behind the veil die too?

Eddie, who would like to intern at the MoM for a while to be able to
play with all these questions.