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प्रश्न
A plastic cube is released into the water. Will it sink or come to the surface of the water?
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उत्तर
- When dropped into water, the plastic cube floats on the top rather than sinking. The term "buoyancy phenomenon" refers to this.
- When compared to other objects, plastic has a high rate of buoyancy and is water-repellent. Plastic naturally floats on the water's surface because it is lighter than water.
- The same experiment will result in a glass cube sinking because it weighs more than the liquid it is released into.
संबंधित प्रश्न
Which of the following will sink or float on water? (Density of water = 1 g Cm-3)
body D having density 0.85 g m-3
What is the law of floatation?
How does the pressure exerted by thrust depend on the area of surface on which it acts? Explain with a suitable example.
Deduce an expression for the pressure at depth inside a liquid.
Complete the following sentence :
Pressure at a depth h in a liquid of density p is ......................
Complete the following sentence :
Pressure is .................... in all directions about a point in a liquid.
Why is a force needed to keep a block of wood inside water?
A metal solid cylinder tied to a thread is hanging from the hook of a spring balance. The cylinder is gradually immersed into the water contained in a jar. What changes do you expect in the readings of the spring balance? Explain your answer.
Complete the analogy.
Downward force: Weight:: Upward force offered by liquid: _____
State whether true or false. If false, correct the statement.
The weight of fluid displaced determines the buoyant force on an object.
