(D) The upthrust (buoyant force) on a body submerged in a liquid is given by the formula $F_B = V_{disp} \cdot \rho_{liquid} \cdot g_{eff}$,where $g_{

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(D) The upthrust (buoyant force) on a body submerged in a liquid is given by the formula $F_B = V_{disp} \cdot \rho_{liquid} \cdot g_{eff}$,where $g_{eff}$ is the effective acceleration due to gravity.When the entire system (beaker and liquid) is falling freely under gravity,the effective acceleration $g_{eff}$ becomes $g - g = 0$.Since the upthrust depends on the effective gravity,and $g_{eff} = 0$,the upthrust on the body becomes zero.

Class 11 Physics Mechanical Properties of Fluids Buoyancy, Archimedes' Principle and Laws of Floatation

Medium

$A$ body floats in a liquid contained in a beaker. The whole system falls freely under gravity. The upthrust on the body due to the liquid is

A
equal to weight of the body in air
B
equal to weight of liquid displaced
C
equal to weight of immersed portion of body
D
zero

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Class 11 Questions

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Mechanical Properties of Fluids

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Buoyancy, Archimedes' Principle and Laws of Floatation

If $W$ is the weight of a body of density $\rho$ in vacuum,then its apparent weight in air of density $\sigma$ is:

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The density of ice is $0.9 \, g/cm^3$. What percentage by volume of the block of ice floats outside the water is ..........$\%$

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$A$ silver ingot weighing $2.1 \ kg$ is held by a string so as to be completely immersed in a liquid of relative density $0.8$. The relative density of silver is $10.5$. The tension in the string in $kg-wt$ is

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When two corks,one small and one big,are placed into a vessel filled with water and released,which cork will reach the surface of the water faster? Why?

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$A$ ball of relative density $0.8$ falls into water from a height of $2 \ m$. The depth to which the ball will sink is ........ $m$ (neglect viscous forces):

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$A$ body floats in a liquid contained in a beaker. The whole system falls freely under gravity. The upthrust on the body due to the liquid is

Similar Questions

If $W$ is the weight of a body of density $\rho$ in vacuum,then its apparent weight in air of density $\sigma$ is:

The density of ice is $0.9 \, g/cm^3$. What percentage by volume of the block of ice floats outside the water is ..........$\%$

$A$ silver ingot weighing $2.1 \ kg$ is held by a string so as to be completely immersed in a liquid of relative density $0.8$. The relative density of silver is $10.5$. The tension in the string in $kg-wt$ is

When two corks,one small and one big,are placed into a vessel filled with water and released,which cork will reach the surface of the water faster? Why?

$A$ ball of relative density $0.8$ falls into water from a height of $2 \ m$. The depth to which the ball will sink is ........ $m$ (neglect viscous forces):

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