This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
True about Laplace's law are all, except 
Select and explain. 
A. P=T/r, B. P = 2T/r, C. T = WP/r, D. T = Pr/w
D: T = Pr/w
Answer: D: T = Pr/w 
Explanation: T = Pr/wLAW OF LAPLACE:States that tension (T) in the wall of a cylinder is equal to the product of transmural pressure (P) & radius (r) divided by wall thickness (w).I.e., T = Pr/w.