Bernoulli's principle is based on the law of conservation of :
A
Mass
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B
Momentum
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C
Energy
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D
None of these
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Solution
The correct option is C Energy Answer is C. Bernoulli's principle is based on the principle of conservation of energy. This states that in a steady flow the sum of all forms of mechanical energy in a fluid along a streamline is the same at all points on that streamline. This requires that the sum of kinetic energy and potential energy remain constant. If the fluid is flowing out of a reservoir the sum of all forms of energy is the same on all streamlines because in a reservoir the energy per unit mass (the sum of pressure and gravitational potential) is the same everywhere.