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Question 30982
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Fluid Mechanics: Bernoulli's Theorem MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Bernoulli's TheoremHardQuestion 30982

Question

Bernoulli's theorem fails in viscous flow because:
  1. A
    Density changes
  2. B
    Energy is dissipated by viscous forces
    Correct
  3. C
    Temperature changes
  4. D
    Gravity changes

Correct answer

Energy is dissipated by viscous forces

Explanation

Bernoulli assumes no energy loss. Viscous friction converts kinetic energy to heat — total mechanical energy is not conserved.

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