(a)
Interpretation:
Based on the densities given in table 1.1, among the elements, nickel, gold, lead and magnesium, the element that floats on liquid mercury at
Concept Introduction:
Buoyancy:
It explains the floating nature of a substance in a fluid based on the densities of the substance and the fluid in which it is placed.
If a substance with low density is placed in a fluid of more density, then the substance floats in that fluid.
If a substance with high density is placed in a fluid of low density, then the substance sinks in that fluid.
(b)
Interpretation:
Based on the densities given in table 1.1, among the elements, titanium, copper, iron and gold, the element that floats highest on mercury has to be given.
Concept Introduction:
Refer to part (a).
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