Physics
State the principle of floatation.
Fluids Upthrust
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Answer
The principle of floatation states that the weight of a floating body is equal to the weight of the liquid displaced by it's submerged part.
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Related Questions
Assertion (A) : An iron nail sinks in water, but floats in mercury.
Reason (R) : The density of iron is equal to density of mercury but greater than water.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
Assertion (A) : A loaded ship is submerged more while an unloaded ship is less submerged.
Reason (R) : A loaded ship displaces more water in comparison to an unloaded ship in order to float.
- both A and R are true and R is the correct explanation of A
- both A and R are true and R is not the correct explanation of A
- assertion is false but reason is true
- assertion is true but reason is false
When a piece of wood is suspended from the hook of a spring balance, it reads 70 gf. The wood is now lowered into water. What reading do you expect on the scale of spring balance?
[Hint: The piece of wood will float on water and while floating, apparent weight = 0].
How does the density ρS of a substance determine whether a solid piece of that substance will float or sink in a given liquid of density ρL ?