Quote Originally Posted by Chris 2.0
No it needs to be physically hit. Think back to the Indigo League in the anime. Once Bulbasaur struck Scyther wityh vine whip, its clones dissapeared.

I think the brutality of the attack deters the users concentration long enough for the clones to dissapear.
There have been episodes where attacks have passed through clones and they didn't disappear. They only disappeared after the user went on the offensive