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प्रश्न
Explain why, a piece of glass sinks in water but it floats in mercury.
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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