18. The density of water is 1.0 g cm-?. The density of iron is 7.8 g cm-?. The density of mercury is13.6 g cm-3. Answer the following:(a) Will a piece of iron float or sink in water?(b) Will a piece of iron float or sink in mercury ?

18. The density of water is 1.0 g cm-?. The density of iron is 7.8 g

1.	18. The density of water is 1.0 g cm-?. The density of iron is 7.8 g cm-?. The density of mercury is13.6 g cm-3. Answer the following:(a) Will a piece of iron float or sink in water?(b) Will a piece of iron float or sink in mercury ?
Answer» ct sinks when DENSITY of the OBJECT is greater than density of surrounding fluid medium.(i) Since density of iron > density of water, iron sinks.(ii) Since, density of iron < density of mercury, iron FLOATS

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18. The density of water is 1.0 g cm-?. The density of iron is 7.8 g cm-?. The density of mercury is13.6 g cm-3. Answer the following:(a) Will a piece of iron float or sink in water?(b) Will a piece of iron float or sink in mercury ?​

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18. The density of water is 1.0 g cm-?. The density of iron is 7.8 g cm-?. The density of mercury is13.6 g cm-3. Answer the following:(a) Will a piece of iron float or sink in water?(b) Will a piece of iron float or sink in mercury ?