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A balloon moving up in the air is based on the-
  • a)
    Pascal law
  • b)
    Archimedes principle
  • c)
    Bernoulli’s Equation
  • d)
    None of the above
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A balloon moving up in the air is based on the-a)Pascal lawb)Archimede...
CONCEPT:
  • A simple device that uses hot air or light gas to move up in the air is called a balloon.
  • Archimedes principle: Any object which is floating in a fluid is acted upon by an upward force whose magnitude is equal to the weight of the fluid displaced.
    • The balloon is based on the principle of Archimedes.
EXPLANATION:
  • When the air is being heated the density of that air gets reduced compared to the density of surrounding air or we can use the gas having less density than that of air.
  • Due to the difference in density, the balloon lifted above the ground and moves up in the air.
  • Thus a balloon is based on the Archimedes principle. So option 2 is correct.
EXTRA POINTS:
  • Bernoulli's principle: For a streamlined flow of an ideal liquid in a varying cross-section tube the total energy per unit volume remains constant throughout the fluid.
  • Pascal’s principle: Pascal’s Law is the principle of transmission of fluid-pressure.
    • It says that "a pressure exerted anywhere in a point of the confined fluid is transmitted equally in all directions throughout the fluid”.
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Most Upvoted Answer
A balloon moving up in the air is based on the-a)Pascal lawb)Archimede...
Archimedes Principle
The reason why a balloon moves up in the air is based on Archimedes' Principle. This principle states that an object immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid it displaces.

Buoyant Force
- When a balloon is filled with a gas that is lighter than the surrounding air, such as helium, it becomes less dense than the air.
- The buoyant force acting on the balloon is greater than its weight, causing it to rise in the air.

Displacement of Air
- As the balloon rises, it displaces air downward, creating a difference in pressure between the top and bottom of the balloon.
- This pressure difference contributes to the upward movement of the balloon.

Conclusion
In conclusion, the movement of a balloon up in the air is a result of Archimedes' Principle, which explains the buoyant force acting on objects immersed in a fluid. By being filled with a gas less dense than air, the balloon experiences an upward force greater than its weight, causing it to float upwards.
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A balloon moving up in the air is based on the-a)Pascal lawb)Archimedes principlec)Bernoulli’s Equationd)None of the aboveCorrect answer is option 'B'. Can you explain this answer?
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