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Bernoulli's theorem is a cosequence of...

Bernoulli's theorem is a cosequence of

A

conservation of mass

B

conservation of energy

C

conservation of linear momentum

D

conservation of angular momentum

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**Step-by-Step Solution:** 1. **Understanding Bernoulli's Theorem**: Bernoulli's theorem states that for an incompressible, non-viscous fluid flowing in a streamline, the total mechanical energy along a streamline is constant. This total energy consists of kinetic energy, potential energy, and pressure energy. 2. **Components of Bernoulli's Equation**: The equation can be represented as: \[ P + \frac{1}{2} \rho v^2 + \rho g h = \text{constant} \] where: - \( P \) is the pressure energy per unit volume, - \( \frac{1}{2} \rho v^2 \) is the kinetic energy per unit volume, - \( \rho g h \) is the potential energy per unit volume, - \( \rho \) is the density of the fluid, - \( v \) is the velocity of the fluid, - \( g \) is the acceleration due to gravity, - \( h \) is the height above a reference level. 3. **Conservation of Energy Principle**: Bernoulli's theorem is a consequence of the principle of conservation of energy. It implies that the sum of the kinetic energy, potential energy, and pressure energy remains constant in a flowing fluid, assuming no energy is added or lost due to friction or other dissipative forces. 4. **Conclusion**: Therefore, Bernoulli's theorem is fundamentally based on the conservation of energy principle applied to fluid dynamics. **Final Answer**: Bernoulli's theorem is a consequence of the conservation of energy. ---

**Step-by-Step Solution:** 1. **Understanding Bernoulli's Theorem**: Bernoulli's theorem states that for an incompressible, non-viscous fluid flowing in a streamline, the total mechanical energy along a streamline is constant. This total energy consists of kinetic energy, potential energy, and pressure energy. 2. **Components of Bernoulli's Equation**: The equation can be represented as: \[ P + \frac{1}{2} \rho v^2 + \rho g h = \text{constant} \] ...
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Knowledge Check

  • Applications of Bernoulli's theorem can be seen in

    A
    1. dynamic lift of aeroplane
    B
    2. hydraulic press
    C
    3. helicopter
    D
    4. none of these
  • In the case of fluid, Bernoulli's theorem expresses the application of principle conservation of

    A
    Linear momentum
    B
    energy
    C
    mass
    D
    angular momentum
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