# Bernoullis Principle Free Doubts and Solutions

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Derivation of the Bernoulli's therom

**Vidya**10th March 2018, 6:01 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## State the limitations and applications of Bernoulli's principle

**aadeshpdabre**27th February 2016, 12:45 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## How viscosity & friction arise from inter molicular forces? How the viscosity of oil helps in applying brakes?

**Vineeth K**7th January 2015, 9:32 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## A plane is in level flight at constant speed. If the speed of blowing air over the lower wing is 150 km/h and that over the upper wing is 210 km/h, determine the net upward force exerted on the plane. Given area of each wing 20 m². (Take air density to be 1 kg/m³)

**Topperlearning User**1st August 2014, 10:35 AM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Find the gravitational energy per unit mass possessed by 1 kg of water if its total energy per unit mass is 200 J at a point where pressure is 1.96 x 104 Pa and velocity is 0.1 m/s.

**Topperlearning User**1st August 2014, 10:31 AM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## What would happen to the equilibrium of a physical balance when air is blown below one of the pans?

**Topperlearning User**1st August 2014, 9:11 AM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Air flows horizontally with the speed of 108 Km/h over the plane roof of the house. If the area of the roof is 28 m2 and the density of air is 1.3 kg/m3 calculate the upthrust exerted on the roof.

**Topperlearning User**1st August 2014, 9:09 AM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Determine the total energy per unit mass possessed by water at a point, where pressure is 196x103 N/m2, velocity is 0.2 m/s and height of water level from the ground is 0.40 m.

**Topperlearning User**31st July 2014, 4:34 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Calculate the gravitational potential energy per unit mass possessed by water if the height of the water level from the ground is 0.20 m?

**Topperlearning User**31st July 2014, 3:37 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## At what speed will the velocity of a stream of water be equal to 10 cm of Hg?

**Topperlearning User**31st July 2014, 3:32 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Water is flowing with a speed of 4 m/s in a horizontal pipe of non-uniform area of cross-section decreasing from 0.04 m² to 0.01 m² at pressure 40 x 104 Pa. What will be the pressure at narrower end?

**Topperlearning User**31st July 2014, 3:30 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## What are the limitations of Bernoulli's theorem?

**Topperlearning User**31st July 2014, 3:26 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## What happens to the pressure of an ideal liquid when it enters a narrow tube?

**Topperlearning User**31st July 2014, 3:10 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## State Bernoulli's theorem for an ideal liquid flowing through a horizontal tube.

**Topperlearning User**31st July 2014, 3:09 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## Bernoulli's theorem is a consequence of which principle?

**Topperlearning User**31st July 2014, 2:04 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## State Bernoulli's theorem.

**Topperlearning User**31st July 2014, 2:03 PM

### CBSE - XI Science - Physics - Mechanical Properties of Fluids

## A liquid is in streamlined flow through a tube of non- uniform cross - section.Prove that sum of its kinetic energy, pressure energy and potential energy per unit mass remains constant.

**Topperlearning User**4th June 2014, 1:23 PM