An object of mass $100 g$ has a volume of $20 c m^{3}$ . Calculate the density of the object. Also, state whether the object will float or sink in water.

5 g c m^{- 3}, f l o a t

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5.0 g c m^{- 3}, s i n k

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1.0 g c m^{- 3}, s i n k

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2.0 g c m^{- 3}, f l o a t

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Solution

The correct option is B $5.0 g c m^{- 3}, s i n k$
Given, mass = $100 g$ , volume = $20 c m^{3}$
Density of object $= \frac{m a s s}{v o l u m e}$
$= \frac{100 g}{20 c m^{3}} = 5 g c m^{- 3}$

Also, density of water = $1 g c m^{- 3}$
Since density of object > density of water, the object will sink in water.

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An object of mass 100 g has a volume of 20 cm3. Calculate the density of the object. Also, state whether the object will float or sink in water.

The correct option is B 5.0 g cm−3, sinkGiven, mass = 100 g, volume = 20 cm3 Density of object =massvolume =100 g20 cm3=5 g cm−3 Also, density of water = 1 g cm−3 Since density of object > density of water, the object will sink in water.

An object of mass $100 g$ has a volume of $20 c m^{3}$ . Calculate the density of the object. Also, state whether the object will float or sink in water.