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प्रश्न
What is the law of floatation?
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उत्तर
A body will float in a liquid if the weight of the body is equal to the weight of the liquid displaced by it.
Key Points:
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Buoyant Force:
- When a body is partially or fully submerged in a liquid, it experiences an upward force called the buoyant force.
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Condition for Floating:
- For a body to float, the buoyant force must equal the weight of the body.
- This happens when the density of the body is less than or equal to the density of the liquid.
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Stable Floating:
- In equilibrium, the body displaces an amount of liquid whose weight is exactly equal to its own weight.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false :
The buoyant force depends on the nature of object immersed in the liquid
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
When does an object float or sink when placed on the surface of a liquid ?
How does the liquid pressure on a diver change if :
The diver moves horizontally?
The pressure P1 at the top of a dam and P2 at a depth h form the top inside water (density p) are related as :
A simple U tube contains mercury to the same level in both of its arms. If water is poured to a height of 13.6 cm in one arm, how much will be the rise in mercury level in the other arm?
Given : density of mercury = 13.6 x 103 kg m-3 and density of water = 103 kg m-3.
Will a body weigh more in air or vacuum when weighed with a spring balance? Give a reason for your answer.
Select the correct option:
The phenomenon due to which a solid experiences upward force when immersed in water is called:
Is thrust a scalar or vector quantity?
In a fluid, buoyant force exists because the pressure at the ______ of an object is greater than the pressure at the top.
