Class 11PhysicsMechanical Properties of FluidsBernoulli's Theorem and Applications of Bernoulli's Theory
MediumExplain why the roof of a building flies off during a stormy wind.
(N/A) According to Bernoulli's principle,for a streamline flow of an ideal fluid,the sum of pressure energy,kinetic energy,and potential energy per unit volume remains constant. During a storm,the wind blows at a very high velocity over the roof of the building. This high-velocity air creates a region of low pressure above the roof. Inside the building,the air is relatively still,resulting in higher atmospheric pressure beneath the roof. This pressure difference creates an upward force (lift) on the roof. When this upward force exceeds the weight of the roof,it causes the roof to fly off.
Explore More
Similar Questions
Which fundamental law forms the basis of Bernoulli's equation?
Easy
View SolutionDetermine the pressure difference in a tube of non-uniform cross-sectional area as shown in the figure. $\Delta P = ?$ (in $Pa$)
$d_{1} = 5 \, cm, V_{1} = 4 \, m/s, d_{2} = 2 \, cm, V_{2} = ?$
Assume the fluid is water with density $\rho = 1000 \, kg/m^{3}$.
$d_{1} = 5 \, cm, V_{1} = 4 \, m/s, d_{2} = 2 \, cm, V_{2} = ?$
Assume the fluid is water with density $\rho = 1000 \, kg/m^{3}$.
MediumAIIMS 2019
View Solution$A$ closed water tank has a cross-sectional area $A$. It has a small hole at a depth of $h$ from the free surface of the water. The radius of the hole is $r$ such that $r \ll \sqrt{\frac{A}{\pi}}$. If $p_o$ is the pressure inside the tank above the water level and $p_a$ is the atmospheric pressure,the rate of flow of the water coming out of the hole is ($\rho$ is the density of water).
MediumKCET 2023
View SolutionAs shown in the figure, a pump is designed as a horizontal cylinder with a piston having area $A$ and an outlet orifice having an area $a$. The piston moves with a constant velocity under the action of force $F$. If the density of the liquid is $\rho$, then the speed of the liquid emerging from the orifice is (assume $A \gg a$):
DifficultWBJEE 2023
View SolutionExplain blood flow and heart attack with the help of Bernoulli's principle.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo