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. Stokes' law
C. Bernoulli's principle
D. Archimede's principle

Answer

C

Explanation

According to equation of continuity , `av=a` constant.
It means ,as area increases, velocity decreases. Thus, as blood flows from narrow arteries to wider one, velocity decreases.
According to Bernoulli's theorem, `P+(1)/(2)rhov^(2)=a` constant
It means , as velocity decreases, pressure increases. Thus, when arteries become narrow, blood pressure increases.