Question 26 (a)

(a) A cube of side 5 cm is immersed in water and then in saturated salt solution. In which case will it experience a greater buoyant force. If each side of the cube is reduced to 4 cm and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case for water. Give reason for each case.

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Solution

(i) The cube will experience a greater buoyant force in the saturated salt solution because the density of the salt solution is greater than that of water.

(ii) The smaller cube will experience lesser buoyant force as its volume is lesser than the initial cube.

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Similar questions

Q. A cube of side

5 c m

is immersed in the water and then in the saturated salt solution. In which case will it experience a greater buoyant force ? If each side of the cube is reduced to

4 c m

and then immersed in water compare to the force experienced by the cube in both the cases. Give reasons for each case.

Q. A cube of side

5

cm

is immersed in water and then in saturated salt solution. In which case will it experience a greater buoyant force? If each side of the cube is reduced to

4

cm

and then immersed in water, what will be the effect on the buoyant force experienced by the cube as compared to the first case of water?
Give reason(s) for each case.

Q. A cube of side

5 c m

is immersed in water and then in saturated salt solution. In which case will it experience a greater buoyant force?

What is the buoyant force experienced by a cube of side $10 c m$ which is completely immersed in water?
(Take $g = 10 m s^{- 2}$ and density of water $= 1000 k g m^{- 3}$ )

A cube of side 10 cm completely immersed in water experiences a buoyant force of 1000 N. $(g = 10 m s^{- 2})$

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(i) The cube will experience a greater buoyant force in the saturated salt solution because the density of the salt solution is greater than that of water. (ii) The smaller cube will experience lesser buoyant force as its volume is lesser than the initial cube.

(i) The cube will experience a greater buoyant force in the saturated salt solution because the density of the salt solution is greater than that of water.

(ii) The smaller cube will experience lesser buoyant force as its volume is lesser than the initial cube.