My PhD is in computational Materials science. I successfully defended my thesis yesterday. However, I felt that one of the committee members was starting to get angry with my answers. I was trying to answer his questions, but his questions were very vague indicating that he clearly did not go through my thesis. Thus I had to answer his questions a bit elaborately, so that he could understand the reasoning behind my answers. I could sense that he was dissatisfied with my answers.
For example: He asked me, how confident are you about your theoretical model when comparing with the real world experimental results?
My answer: Since my model has A, B, C assumptions. It can never accurately predict the experimental/real world results.
His question: What would be your confidence level? What percentage?
My answer: It would be hard to put an exact percentage. But I would go with 90%.
He followed with an "okay".
Can I ask him directly about his feedback on my answers during the session?