MCQ
Area under a v – t graph represents a physical quantity which has the unit:
- Am2
- Bm
- Cm3
- Dm s–1
Explanation:
The given area represents displacement. Unit of displacement is meter.
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An object is put in three liquids having different densities, one by one. The object floats with $\frac{1}{9},\frac{2}{11}$ and $\frac{3}{7}$ parts of its volume outside the surface of liquids of densities d1, d2 and d3 respectively. Which of the following is the correct order of the densities of the three liquids ?
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?

Genetic material of a eukaryotic cell is contained in: