Question

Bernoulli's theorem deals with the law of conservation of

• A. Mass
• B. Momentum
• C. Energy
• D. Pressure

Hint:

Bernoulli’s theorem is derived from the conservation of mechanical energy in fluid flow.

Answer 1

The Correct Option is C

Step 1: Understand Bernoulli's theorem.
Bernoulli’s theorem states that for an incompressible, frictionless flow, the total mechanical energy along a streamline is constant. The total energy consists of the pressure energy, kinetic energy, and potential energy. \[ P + \frac{1}{2} \rho v^2 + \rho gh = \text{constant} \] Where \( P \) is the pressure, \( \rho \) is the density, \( v \) is the velocity, and \( h \) is the height. Step 2: Conclusion.
Bernoulli's theorem is based on the principle of the conservation of energy. Final Answer: \[ \boxed{\text{Energy}} \]