How many viruses are there to generate a plaque?

Question 1:
What I mean by this is that when we plate bacteria with say bacteriophage, we sometimes see plaques. I keep hearing that one bacteriophage generated the plaque, but it this often the situation? I find it hard to believe that just one bacteriophage makes it per plaque, because when you spray a sample on it, there's going to be many there right?

Question 2:
I've read that turbid plaques are the result of resistance in some or perhaps that the bacteriophages are undergoing the lysogenic cycle. But why would it generate a turbid plaque rather than none at all?

My guess is that some would undergo the lytic cycle, so would undergo the lysogenic cycle, hence resulting in a turbid plaque as not all of the bacteria die.

Thank you very much.