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प्रश्न
Explain why, a piece of glass sinks in water but it floats in mercury.
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उत्तर
A piece of glass sinks in water because the density of glass (2,500 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 glass, so the glass piece floats in mercury.
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संबंधित प्रश्न
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Why does a block of plastic released under water come up to the surface 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.
What determines whether an object floats or sinks in a fluid?
