What is the value of angular velocity at a point on the solid surface outside the boundary layer where the velocity becomes equal to free stream velocity?

What is the value of angular velocity at a point on the solid surface

1.	What is the value of angular velocity at a point on the solid surface outside the boundary layer where the velocity becomes equal to free stream velocity?
A.	Infinite
B.	One
C.	Zero
D.	0.5
Answer» D. 0.5