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Standard IX

Physics

Buoyancy

A cubical blo...

Question

A cubical block of wood 10 cm on a side, floats at the interface of oil and water as shown in figure. The density of oil is 0.6 g $c m^{- 3}$ and density of water is 1 g $c m^{- 3}$ . The mass of the block is

706 g

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607 g

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760 g

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670 g

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Solution

The correct option is C 760 g
Weight of block = Weight of oil displaced + weight of water displaced
$m g = 600 (6) g + 400 (1) g = 760 g$
$m = 760 g$

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A cubical block of wood 10 cm on a side, floats at the interface of oil and water as shown in figure. The density of oil is 0.6 g cm−3 and density of water is 1 g cm−3. The mass of the block is

The correct option is C 760 gWeight of block = Weight of oil displaced + weight of water displacedmg=600(6)g+400(1)g=760gm=760g

A cubical block of wood 10 cm on a side, floats at the interface of oil and water as shown in figure. The density of oil is 0.6 g $c m^{- 3}$ and density of water is 1 g $c m^{- 3}$ . The mass of the block is

The correct option is C 760 g
Weight of block = Weight of oil displaced + weight of water displaced
$m g = 600 (6) g + 400 (1) g = 760 g$
$m = 760 g$