An aluminium sphere is dipped into water. Whi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The buoyant force $F_b$ acting on a submerged object is given by Archimedes' principle: $F_b = V \rho g$,where $V$ is the volume of the displaced

Vedclass · Accepted Answer

Buoyancy will be less in water at $0 \ ^\circ C$ than that in water at $4 \ ^\circ C$

Vedclass · Answer

(B) The buoyant force $F_b$ acting on a submerged object is given by Archimedes' principle: $F_b = V \rho g$,where $V$ is the volume of the displaced liquid,$\rho$ is the density of the liquid,and $g$ is the acceleration due to gravity.The density of water is maximum at $4 \ ^\circ C$ $(\rho_4 \approx 1000 \ kg/m^3)$ and is lower at $0 \ ^\circ C$ $(\rho_0 \approx 999.8 \ kg/m^3)$.Since the volume of the aluminium sphere $V$ remains constant,the buoyancy at $0 \ ^\circ C$ is $F_b = V \rho_0 g$ and at $4 \ ^\circ C$ is $F'_b = V \rho_4 g$.Comparing the two,since $\rho_0 Therefore,the buoyancy is less in water at $0 \ ^\circ C$ than in water at $4 \ ^\circ C$.

An aluminium sphere is dipped into water. Which of the following is true?

Similar Questions

$A$ metallic sphere weighing $3 \,kg$ in air is held by a string so as to be completely immersed in a liquid of relative density $0.8$. The relative density of the metal is $10$. The tension in the string is ........ $N$.

$A$ cubical block of wood of specific gravity $0.5$ and a chunk of concrete of specific gravity $2.5$ are fastened together. The ratio of the mass of wood to the mass of concrete which makes the combination to float with its entire volume submerged under water is

An ice block contains a glass ball. When the ice melts within a vessel containing water,the level of the water

$A$ large ship can float but a steel needle sinks because of

Vedclass Test Series

Exam Paper Generator

Online Exam Module