A block of iron (density 9.8 $g / c m^{3})$ if added in mercury (density 13.6 $g / c m^{3}$ ) will:

sink

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float

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neither float nor sink i.e. remain suspended in mercury

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none of these

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Solution

The correct option is B float
The average density of the object should be less than the density of the fluid in which the object has to float.

The density of object (iron) is less than the fluid (mercury).

Therefore, it will float.

Hence, option B is correct.

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Similar questions

Iron sinks in water and floats in mercury.

Density of Iron - $7.6 g / c m^{3}$

Density of Water - $1 g / c m^{3}$

Density of Mercury - $13.7 g / c m^{3}$

The density of water 1.0 g $c m^{-} 3$ . The density of iron is 7.8 g $c m^{-} 3$ . The density of mercury is of 13.6 g $c m^{-} 3$ . Answer the following :

(a) Will a piece of an iron float or sink in water?

(b) Will a piece of an iron float or sink in mercury?

Q. Iron has a density of

7.9 g / c m^{3}

. Mercury is a liquid that has a density of

13.5 g / c m^{3}

. Will iron float or sink in mercury? Explain your answer.

Q. A vessel contains oil (density =

0.8 {g/cm}^{3})

over mercury (density =

13.6 {g/cm}^{3})

. A homogeneous sphere floats with half of its volume immersed in mercury and the other half in oil. The density of the material of the sphere in

{g/cm}^{3}

Q. A vessel contains oil (density

= 0.8 g / c m^{2}

) over mercury (density

= 13.6 g / c m^{3}

). A homogeneous sphere floats with half its volume immersed in mercury and the other half in oil . The density of the material of the sphere in

g / c m^{3}

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A block of iron (density 9.8 g/cm3) if added in mercury (density 13.6 g/cm3 ) will:

The correct option is B floatThe average density of the object should be less than the density of the fluid in which the object has to float.The density of object (iron) is less than the fluid (mercury).Therefore, it will float.Hence, option B is correct.

A block of iron (density 9.8 $g / c m^{3})$ if added in mercury (density 13.6 $g / c m^{3}$ ) will:

The correct option is B float
The average density of the object should be less than the density of the fluid in which the object has to float.

The density of object (iron) is less than the fluid (mercury).

Therefore, it will float.

Hence, option B is correct.