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प्रश्न
An iron nail sinks in water but it floats in mercury. Why ?
उत्तर
An iron nail sinks in water because the density of iron (7,900 kg/m3) is more than the density of water (1,000 kg/m3). Whereas the density of mercury (13,600 kg/m3) is more than the density of iron, so the iron nail floats in mercury.
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संबंधित प्रश्न
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What is the value of relative density of water ?
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Consider the following information in respect of four objects A, B, C and D :
| Object | Density(kg/m3) | Volume(m3) | Mass(kg) |
| A | 2 | 4000 | |
| B | 8000 | 4 | |
| C | 2000 | 1000 | |
| D | 4 | 2000 |
Which object would float on water ?
Give reason.
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