In old age arteries carrying blood in the human body become narrow resulting in an increase in the blood pressure. This follows from

Options

A. Pascal's law
B. stoke's law
C. Bernoulli's principle
D. Archimedes principle

Answer

C

Explanation

According to continuity theorem as
av=constant as area increases velocity decreases.so when blood flows from narrow arteries to wider one,velocity decreases.According to Bernoulli's principle,
`P+(1)/(2)rhov^(2)="contant"`
As velocity decreases,pressure increases.Thus when arteries become narrow,blood pressure increases.