Question

Which of the following principle shows that if you increase air speed its pressure will decrease?

• A. Darwin principle
• B. Einstein principle
• C. Bohr principle
• D. Bernoulli's principle

Answer 1

Answer: (D)

Bernoulli's principle

According to Bernoulli's principle, Fast moving air equals low air pressure while slow moving air equals high air pressure.

$P_1+\frac{V_1^2}{2}=P_2+\frac{V_2^2}{2}$

Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure. The same is applicable in case of gases also.