Write limitations of Bernoulli’s theorem.
Write limitations of Bernoulli’s theorem.
$(i)$ This theorem is obtained by applying the energy conservation principle, there is an assumption that no energy is lost due to friction. But in fact when fluids flow, some energy does get lost due to internal friction. Infact viscous forces acting between different layers and there layers exert frictional forces on each other resulting in a loss of energy.
$(ii)$ For applying Bernoulli's theorem the fluid must be incompressible, as the elastic energy of the fluid is also not taken into consideration.
Similar Questions
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- [AIIMS 2001]
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Explain blood flow and heart attack with the help of Bernoulli’s principle.
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Water is flowing through a horizontal tube having cross-sectional areas of its two ends being $A$ and $A'$ such that the ratio $A/A'$ is $5$ છે.જો If the pressure difference of water between the two ends is $3 \times 10^5\, N\, m^{-2}$, the velocity of water with which it enters the tube will be ......... $m s^{-1}$ (neglect gravity effects)
Water is flowing through a horizontal tube having cross-sectional areas of its two ends being $A$ and $A'$ such that the ratio $A/A'$ is $5$ છે.જો If the pressure difference of water between the two ends is $3 \times 10^5\, N\, m^{-2}$, the velocity of water with which it enters the tube will be ......... $m s^{-1}$ (neglect gravity effects)
- [AIEEE 2012]